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Projects:
Bacula Projects Roadmap
Status updated 04 February 2009
Items Completed for version 3.0.0:
Item 1: Accurate restoration of renamed/deleted files
Item 3: Merge multiple backups (Synthetic Backup or Consolidation)
Item 4: Implement Catalog directive for Pool resource in Director
Item 5: Add an item to the restore option where you can select a Pool
Item 8: Implement Copy pools
Item 12: Add Plug-ins to the FileSet Include statements.
Item 13: Restore only file attributes (permissions, ACL, owner, group...)
Item 18: Better control over Job execution
Item 26: Store and restore extended attributes, especially selinux file contexts
Item 27: make changing "spooldata=yes|no" possible for
Item 28: Implement an option to modify the last written date for volumes
Summary:
Item 2: Allow FD to initiate a backup
Item 6: Deletion of disk Volumes when pruned
Item 7: Implement Base jobs
Item 9: Scheduling syntax that permits more flexibility and options
Item 10: Message mailing based on backup types
Item 11: Cause daemons to use a specific IP address to source communications
Item 14: Add an override in Schedule for Pools based on backup types
Item 15: Implement more Python events and functions --- Abandoned for plugins
Item 16: Allow inclusion/exclusion of files in a fileset by creation/mod times
Item 17: Automatic promotion of backup levels based on backup size
Item 19: Automatic disabling of devices
Item 20: An option to operate on all pools with update vol parameters
Item 21: Include timestamp of job launch in "stat clients" output
Item 22: Implement Storage daemon compression
Item 23: Improve Bacula's tape and drive usage and cleaning management
Item 24: Multiple threads in file daemon for the same job
Item 25: Archival (removal) of User Files to Tape
Item 1: Accurate restoration of renamed/deleted files
Date: 28 November 2005
Origin: Martin Simmons (martin at lispworks dot com)
Status: Done
What: When restoring a fileset for a specified date (including "most
recent"), Bacula should give you exactly the files and directories
that existed at the time of the last backup prior to that date.
Currently this only works if the last backup was a Full backup.
When the last backup was Incremental/Differential, files and
directories that have been renamed or deleted since the last Full
backup are not currently restored correctly. Ditto for files with
extra/fewer hard links than at the time of the last Full backup.
Why: Incremental/Differential would be much more useful if this worked.
Notes: Merging of multiple backups into a single one seems to
rely on this working, otherwise the merged backups will not be
truly equivalent to a Full backup.
Note: Kern: notes shortened. This can be done without the need for
inodes. It is essentially the same as the current Verify job,
but one additional database record must be written, which does
not need any database change.
Notes: Kern: see if we can correct restoration of directories if
replace=ifnewer is set. Currently, if the directory does not
exist, a "dummy" directory is created, then when all the files
are updated, the dummy directory is newer so the real values
are not updated.
Item 2: Allow FD to initiate a backup
Origin: Frank Volf (frank at deze dot org)
Date: 17 November 2005
Status:
What: Provide some means, possibly by a restricted console that
allows a FD to initiate a backup, and that uses the connection
established by the FD to the Director for the backup so that
a Director that is firewalled can do the backup.
Why: Makes backup of laptops much easier.
Item 3: Merge multiple backups (Synthetic Backup or Consolidation)
Origin: Marc Cousin and Eric Bollengier
Date: 15 November 2005
Status: Done
What: A merged backup is a backup made without connecting to the Client.
It would be a Merge of existing backups into a single backup.
In effect, it is like a restore but to the backup medium.
For instance, say that last Sunday we made a full backup. Then
all week long, we created incremental backups, in order to do
them fast. Now comes Sunday again, and we need another full.
The merged backup makes it possible to do instead an incremental
backup (during the night for instance), and then create a merged
backup during the day, by using the full and incrementals from
the week. The merged backup will be exactly like a full made
Sunday night on the tape, but the production interruption on the
Client will be minimal, as the Client will only have to send
incrementals.
In fact, if it's done correctly, you could merge all the
Incrementals into single Incremental, or all the Incrementals
and the last Differential into a new Differential, or the Full,
last differential and all the Incrementals into a new Full
backup. And there is no need to involve the Client.
Why: The benefit is that :
- the Client just does an incremental ;
- the merged backup on tape is just as a single full backup,
and can be restored very fast.
This is also a way of reducing the backup data since the old
data can then be pruned (or not) from the catalog, possibly
allowing older volumes to be recycled
Item 4: Implement Catalog directive for Pool resource in Director
Origin: Alan Davis adavis@ruckus.com
Date: 6 March 2007
Status: Done, but not tested, and possibly not fully implemented.
What: The current behavior is for the director to create all pools
found in the configuration file in all catalogs. Add a
Catalog directive to the Pool resource to specify which
catalog to use for each pool definition.
Why: This allows different catalogs to have different pool
attributes and eliminates the side-effect of adding
pools to catalogs that don't need/use them.
Notes: Kern: I think this is relatively easy to do, and it is really
a pre-requisite to a number of the Copy pool, ... projects
that are listed here.
Item 5: Add an item to the restore option where you can select a Pool
Origin: kshatriyak at gmail dot com
Date: 1/1/2006
Status: Done at least via command line
What: In the restore option (Select the most recent backup for a
client) it would be useful to add an option where you can limit
the selection to a certain pool.
Why: When using cloned jobs, most of the time you have 2 pools - a
disk pool and a tape pool. People who have 2 pools would like to
select the most recent backup from disk, not from tape (tape
would be only needed in emergency). However, the most recent
backup (which may just differ a second from the disk backup) may
be on tape and would be selected. The problem becomes bigger if
you have a full and differential - the most "recent" full backup
may be on disk, while the most recent differential may be on tape
(though the differential on disk may differ even only a second or
so). Bacula will complain that the backups reside on different
media then. For now the only solution now when restoring things
when you have 2 pools is to manually search for the right
job-id's and enter them by hand, which is a bit fault tolerant.
Notes: Kern: This is a nice idea. It could also be the way to support
Jobs that have been Copied (similar to migration, but not yet
implemented).
Item 6: Deletion of disk Volumes when pruned
Date: Nov 25, 2005
Origin: Ross Boylan <RossBoylan at stanfordalumni dot org> (edited
by Kern)
Status:
What: Provide a way for Bacula to automatically remove Volumes
from the filesystem, or optionally to truncate them.
Obviously, the Volume must be pruned prior removal.
Why: This would allow users more control over their Volumes and
prevent disk based volumes from consuming too much space.
Notes: The following two directives might do the trick:
Volume Data Retention = <time period>
Remove Volume After = <time period>
The migration project should also remove a Volume that is
migrated. This might also work for tape Volumes.
Item 7: Implement Base jobs
Date: 28 October 2005
Origin: Kern
Status:
What: A base job is sort of like a Full save except that you
will want the FileSet to contain only files that are
unlikely to change in the future (i.e. a snapshot of
most of your system after installing it). After the
base job has been run, when you are doing a Full save,
you specify one or more Base jobs to be used. All
files that have been backed up in the Base job/jobs but
not modified will then be excluded from the backup.
During a restore, the Base jobs will be automatically
pulled in where necessary.
Why: This is something none of the competition does, as far as
we know (except perhaps BackupPC, which is a Perl program that
saves to disk only). It is big win for the user, it
makes Bacula stand out as offering a unique
optimization that immediately saves time and money.
Basically, imagine that you have 100 nearly identical
Windows or Linux machine containing the OS and user
files. Now for the OS part, a Base job will be backed
up once, and rather than making 100 copies of the OS,
there will be only one. If one or more of the systems
have some files updated, no problem, they will be
automatically restored.
Notes: Huge savings in tape usage even for a single machine.
Will require more resources because the DIR must send
FD a list of files/attribs, and the FD must search the
list and compare it for each file to be saved.
Item 8: Implement Copy pools
Date: 27 November 2005
Origin: David Boyes (dboyes at sinenomine dot net)
Status: A trivial version of this is done.
What: I would like Bacula to have the capability to write copies
of backed-up data on multiple physical volumes selected
from different pools without transferring the data
multiple times, and to accept any of the copy volumes
as valid for restore.
Why: In many cases, businesses are required to keep offsite
copies of backup volumes, or just wish for simple
protection against a human operator dropping a storage
volume and damaging it. The ability to generate multiple
volumes in the course of a single backup job allows
customers to simple check out one copy and send it
offsite, marking it as out of changer or otherwise
unavailable. Currently, the library and magazine
management capability in Bacula does not make this process
simple.
Restores would use the copy of the data on the first
available volume, in order of Copy pool chain definition.
This is also a major scalability issue -- as the number of
clients increases beyond several thousand, and the volume
of data increases, transferring the data multiple times to
produce additional copies of the backups will become
physically impossible due to transfer speed
issues. Generating multiple copies at server side will
become the only practical option.
How: I suspect that this will require adding a multiplexing
SD that appears to be a SD to a specific FD, but 1-n FDs
to the specific back end SDs managing the primary and copy
pools. Storage pools will also need to acquire parameters
to define the pools to be used for copies.
Notes: I would commit some of my developers' time if we can agree
on the design and behavior.
Notes: Additional notes from David:
I think there's two areas where new configuration would be needed.
1) Identify a "SD mux" SD (specify it in the config just like a
normal SD. The SD configuration would need something like a
"Daemon Type = Normal/Mux" keyword to identify it as a
multiplexor. (The director code would need modification to add
the ability to do the multiple session setup, but the impact of
the change would be new code that was invoked only when a SDmux is
needed).
2) Additional keywords in the Pool definition to identify the need
to create copies. Each pool would acquire a Copypool= attribute
(may be repeated to generate more than one copy. 3 is about the
practical limit, but no point in hardcoding that).
Example:
Pool {
Name = Primary
Pool Type = Backup
Copypool = Copy1
Copypool = OffsiteCopy2
}
where Copy1 and OffsiteCopy2 are valid pools.
In terms of function (shorthand): Backup job X is defined
normally, specifying pool Primary as the pool to use. Job gets
scheduled, and Bacula starts scheduling resources. Scheduler
looks at pool definition for Primary, sees that there are a
non-zero number of copypool keywords. The director then connects
to an available SDmux, passes it the pool ids for Primary, Copy1,
and OffsiteCopy2 and waits. SDmux then goes out and reserves
devices and volumes in the normal SDs that serve Primary, Copy1
and OffsiteCopy2. When all are ready, the SDmux signals ready
back to the director, and the FD is given the address of the SDmux
as the SD to communicate with. Backup proceeds normally, with the
SDmux duplicating blocks to each connected normal SD, and
returning ready when all defined copies have been written. At
EOJ, FD shuts down connection with SDmux, which closes down the
normal SD connections and goes back to an idle state. SDmux does
not update database; normal SDs do (noting that file is present on
each volume it has been written to).
On restore, director looks for the volume containing the file in
pool Primary first, then Copy1, then OffsiteCopy2. If the volume
holding the file in pool Primary is missing or busy (being written
in another job, etc), or one of the volumes from the copypool list
that have the file in question is already mounted and ready for
some reason, use it to do the restore, else mount one of the
copypool volumes and proceed.
Item 9: Scheduling syntax that permits more flexibility and options
Date: 15 December 2006
Origin: Gregory Brauer (greg at wildbrain dot com) and
Florian Schnabel <florian.schnabel at docufy dot de>
Status:
What: Currently, Bacula only understands how to deal with weeks of the
month or weeks of the year in schedules. This makes it impossible
to do a true weekly rotation of tapes. There will always be a
discontinuity that will require disruptive manual intervention at
least monthly or yearly because week boundaries never align with
month or year boundaries.
A solution would be to add a new syntax that defines (at least)
a start timestamp, and repetition period.
An easy option to skip a certain job on a certain date.
Why: Rotated backups done at weekly intervals are useful, and Bacula
cannot currently do them without extensive hacking.
You could then easily skip tape backups on holidays. Especially
if you got no autochanger and can only fit one backup on a tape
that would be really handy, other jobs could proceed normally
and you won't get errors that way.
Notes: Here is an example syntax showing a 3-week rotation where full
Backups would be performed every week on Saturday, and an
incremental would be performed every week on Tuesday. Each
set of tapes could be removed from the loader for the following
two cycles before coming back and being reused on the third
week. Since the execution times are determined by intervals
from a given point in time, there will never be any issues with
having to adjust to any sort of arbitrary time boundary. In
the example provided, I even define the starting schedule
as crossing both a year and a month boundary, but the run times
would be based on the "Repeat" value and would therefore happen
weekly as desired.
Schedule {
Name = "Week 1 Rotation"
#Saturday. Would run Dec 30, Jan 20, Feb 10, etc.
Run {
Options {
Type = Full
Start = 2006-12-30 01:00
Repeat = 3w
}
}
#Tuesday. Would run Jan 2, Jan 23, Feb 13, etc.
Run {
Options {
Type = Incremental
Start = 2007-01-02 01:00
Repeat = 3w
}
}
}
Schedule {
Name = "Week 2 Rotation"
#Saturday. Would run Jan 6, Jan 27, Feb 17, etc.
Run {
Options {
Type = Full
Start = 2007-01-06 01:00
Repeat = 3w
}
}
#Tuesday. Would run Jan 9, Jan 30, Feb 20, etc.
Run {
Options {
Type = Incremental
Start = 2007-01-09 01:00
Repeat = 3w
}
}
}
Schedule {
Name = "Week 3 Rotation"
#Saturday. Would run Jan 13, Feb 3, Feb 24, etc.
Run {
Options {
Type = Full
Start = 2007-01-13 01:00
Repeat = 3w
}
}
#Tuesday. Would run Jan 16, Feb 6, Feb 27, etc.
Run {
Options {
Type = Incremental
Start = 2007-01-16 01:00
Repeat = 3w
}
}
}
Notes: Kern: I have merged the previously separate project of skipping
jobs (via Schedule syntax) into this.
Item 10: Message mailing based on backup types
Origin: Evan Kaufman <evan.kaufman@gmail.com>
Date: January 6, 2006
Status:
What: In the "Messages" resource definitions, allowing messages
to be mailed based on the type (backup, restore, etc.) and level
(full, differential, etc) of job that created the originating
message(s).
Why: It would, for example, allow someone's boss to be emailed
automatically only when a Full Backup job runs, so he can
retrieve the tapes for offsite storage, even if the IT dept.
doesn't (or can't) explicitly notify him. At the same time, his
mailbox wouldnt be filled by notifications of Verifies, Restores,
or Incremental/Differential Backups (which would likely be kept
onsite).
Notes: One way this could be done is through additional message types, for example:
Messages {
# email the boss only on full system backups
Mail = boss@mycompany.com = full, !incremental, !differential, !restore,
!verify, !admin
# email us only when something breaks
MailOnError = itdept@mycompany.com = all
}
Notes: Kern: This should be rather trivial to implement.
Item 11: Cause daemons to use a specific IP address to source communications
Origin: Bill Moran <wmoran@collaborativefusion.com>
Date: 18 Dec 2006
Status:
What: Cause Bacula daemons (dir, fd, sd) to always use the ip address
specified in the [DIR|DF|SD]Addr directive as the source IP
for initiating communication.
Why: On complex networks, as well as extremely secure networks, it's
not unusual to have multiple possible routes through the network.
Often, each of these routes is secured by different policies
(effectively, firewalls allow or deny different traffic depending
on the source address)
Unfortunately, it can sometimes be difficult or impossible to
represent this in a system routing table, as the result is
excessive subnetting that quickly exhausts available IP space.
The best available workaround is to provide multiple IPs to
a single machine that are all on the same subnet. In order
for this to work properly, applications must support the ability
to bind outgoing connections to a specified address, otherwise
the operating system will always choose the first IP that
matches the required route.
Notes: Many other programs support this. For example, the following
can be configured in BIND:
query-source address 10.0.0.1;
transfer-source 10.0.0.2;
Which means queries from this server will always come from
10.0.0.1 and zone transfers will always originate from
10.0.0.2.
Item 12: Add Plug-ins to the FileSet Include statements.
Date: 28 October 2005
Origin: Kern
Status: Partially coded in 1.37 -- much more to do.
What: Allow users to specify wild-card and/or regular
expressions to be matched in both the Include and
Exclude directives in a FileSet. At the same time,
allow users to define plug-ins to be called (based on
regular expression/wild-card matching).
Why: This would give the users the ultimate ability to control
how files are backed up/restored. A user could write a
plug-in knows how to backup his Oracle database without
stopping/starting it, for example.
Item 13: Restore only file attributes (permissions, ACL, owner, group...)
Origin: Eric Bollengier
Date: 30/12/2006
Status: Implemented by Eric, see project-restore-attributes-only.patch
What: The goal of this project is to be able to restore only rights
and attributes of files without crushing them.
Why: Who have never had to repair a chmod -R 777, or a wild update
of recursive right under Windows? At this time, you must have
enough space to restore data, dump attributes (easy with acl,
more complex with unix/windows rights) and apply them to your
broken tree. With this options, it will be very easy to compare
right or ACL over the time.
Notes: If the file is here, we skip restore and we change rights.
If the file isn't here, we can create an empty one and apply
rights or do nothing.
This will not work with win32 stream, because it seems that we
can't split the WriteBackup stream to get only ACL and ownerchip.
Item 14: Add an override in Schedule for Pools based on backup types
Date: 19 Jan 2005
Origin: Chad Slater <chad.slater@clickfox.com>
Status:
What: Adding a FullStorage=BigTapeLibrary in the Schedule resource
would help those of us who use different storage devices for different
backup levels cope with the "auto-upgrade" of a backup.
Why: Assume I add several new devices to be backed up, i.e. several
hosts with 1TB RAID. To avoid tape switching hassles, incrementals are
stored in a disk set on a 2TB RAID. If you add these devices in the
middle of the month, the incrementals are upgraded to "full" backups,
but they try to use the same storage device as requested in the
incremental job, filling up the RAID holding the differentials. If we
could override the Storage parameter for full and/or differential
backups, then the Full job would use the proper Storage device, which
has more capacity (i.e. a 8TB tape library.
Item 15: Implement more Python events and functions
Date: 28 October 2005
Origin: Kern
Status: Project abandoned in favor of plugins.
What: Allow Python scripts to be called at more places
within Bacula and provide additional access to Bacula
internal variables.
Implement an interface for Python scripts to access the
catalog through Bacula.
Why: This will permit users to customize Bacula through
Python scripts.
Notes: Recycle event
Scratch pool event
NeedVolume event
MediaFull event
Also add a way to get a listing of currently running
jobs (possibly also scheduled jobs).
to start the appropriate job.
Item 16: Allow inclusion/exclusion of files in a fileset by creation/mod times
Origin: Evan Kaufman <evan.kaufman@gmail.com>
Date: January 11, 2006
Status:
What: In the vein of the Wild and Regex directives in a Fileset's
Options, it would be helpful to allow a user to include or exclude
files and directories by creation or modification times.
You could factor the Exclude=yes|no option in much the same way it
affects the Wild and Regex directives. For example, you could exclude
all files modified before a certain date:
Options {
Exclude = yes
Modified Before = ####
}
Or you could exclude all files created/modified since a certain date:
Options {
Exclude = yes
Created Modified Since = ####
}
The format of the time/date could be done several ways, say the number
of seconds since the epoch:
1137008553 = Jan 11 2006, 1:42:33PM # result of `date +%s`
Or a human readable date in a cryptic form:
20060111134233 = Jan 11 2006, 1:42:33PM # YYYYMMDDhhmmss
Why: I imagine a feature like this could have many uses. It would
allow a user to do a full backup while excluding the base operating
system files, so if I installed a Linux snapshot from a CD yesterday,
I'll *exclude* all files modified *before* today. If I need to
recover the system, I use the CD I already have, plus the tape backup.
Or if, say, a Windows client is hit by a particularly corrosive
virus, and I need to *exclude* any files created/modified *since* the
time of infection.
Notes: Of course, this feature would work in concert with other
in/exclude rules, and wouldnt override them (or each other).
Notes: The directives I'd imagine would be along the lines of
"[Created] [Modified] [Before|Since] = <date>".
So one could compare against 'ctime' and/or 'mtime', but ONLY 'before'
or 'since'.
Item 17: Automatic promotion of backup levels based on backup size
Date: 19 January 2006
Origin: Adam Thornton <athornton@sinenomine.net>
Status:
What: Amanda has a feature whereby it estimates the space that a
differential, incremental, and full backup would take. If the
difference in space required between the scheduled level and the next
level up is beneath some user-defined critical threshold, the backup
level is bumped to the next type. Doing this minimizes the number of
volumes necessary during a restore, with a fairly minimal cost in
backup media space.
Why: I know at least one (quite sophisticated and smart) user
for whom the absence of this feature is a deal-breaker in terms of
using Bacula; if we had it it would eliminate the one cool thing
Amanda can do and we can't (at least, the one cool thing I know of).
Item 18: Better control over Job execution
Date: 18 August 2007
Origin: Kern
Status:
What: Bacula needs a few extra features for better Job execution:
1. A way to prevent multiple Jobs of the same name from
being scheduled at the same time (ususally happens when
a job is missed because a client is down).
2. Directives that permit easier upgrading of Job types
based on a period of time. I.e. "do a Full at least
once every 2 weeks", or "do a differential at least
once a week". If a lower level job is scheduled when
it begins to run it will be upgraded depending on
the specified criteria.
Why: Obvious.
Item 19: Automatic disabling of devices
Date: 2005-11-11
Origin: Peter Eriksson <peter at ifm.liu dot se>
Status:
What: After a configurable amount of fatal errors with a tape drive
Bacula should automatically disable further use of a certain
tape drive. There should also be "disable"/"enable" commands in
the "bconsole" tool.
Why: On a multi-drive jukebox there is a possibility of tape drives
going bad during large backups (needing a cleaning tape run,
tapes getting stuck). It would be advantageous if Bacula would
automatically disable further use of a problematic tape drive
after a configurable amount of errors has occurred.
An example: I have a multi-drive jukebox (6 drives, 380+ slots)
where tapes occasionally get stuck inside the drive. Bacula will
notice that the "mtx-changer" command will fail and then fail
any backup jobs trying to use that drive. However, it will still
keep on trying to run new jobs using that drive and fail -
forever, and thus failing lots and lots of jobs... Since we have
many drives Bacula could have just automatically disabled
further use of that drive and used one of the other ones
instead.
Item 20: An option to operate on all pools with update vol parameters
Origin: Dmitriy Pinchukov <absh@bossdev.kiev.ua>
Date: 16 August 2006
Status: Patch made by Nigel Stepp
What: When I do update -> Volume parameters -> All Volumes
from Pool, then I have to select pools one by one. I'd like
console to have an option like "0: All Pools" in the list of
defined pools.
Why: I have many pools and therefore unhappy with manually
updating each of them using update -> Volume parameters -> All
Volumes from Pool -> pool #.
Item 21: Include timestamp of job launch in "stat clients" output
Origin: Mark Bergman <mark.bergman@uphs.upenn.edu>
Date: Tue Aug 22 17:13:39 EDT 2006
Status:
What: The "stat clients" command doesn't include any detail on when
the active backup jobs were launched.
Why: Including the timestamp would make it much easier to decide whether
a job is running properly.
Notes: It may be helpful to have the output from "stat clients" formatted
more like that from "stat dir" (and other commands), in a column
format. The per-client information that's currently shown (level,
client name, JobId, Volume, pool, device, Files, etc.) is good, but
somewhat hard to parse (both programmatically and visually),
particularly when there are many active clients.
Item 22: Implement Storage daemon compression
Date: 18 December 2006
Origin: Vadim A. Umanski , e-mail umanski@ext.ru
Status:
What: The ability to compress backup data on the SD receiving data
instead of doing that on client sending data.
Why: The need is practical. I've got some machines that can send
data to the network 4 or 5 times faster than compressing
them (I've measured that). They're using fast enough SCSI/FC
disk subsystems but rather slow CPUs (ex. UltraSPARC II).
And the backup server has got a quite fast CPUs (ex. Dual P4
Xeons) and quite a low load. When you have 20, 50 or 100 GB
of raw data - running a job 4 to 5 times faster - that
really matters. On the other hand, the data can be
compressed 50% or better - so losing twice more space for
disk backup is not good at all. And the network is all mine
(I have a dedicated management/provisioning network) and I
can get as high bandwidth as I need - 100Mbps, 1000Mbps...
That's why the server-side compression feature is needed!
Notes:
Item 23: Improve Bacula's tape and drive usage and cleaning management
Date: 8 November 2005, November 11, 2005
Origin: Adam Thornton <athornton at sinenomine dot net>,
Arno Lehmann <al at its-lehmann dot de>
Status:
What: Make Bacula manage tape life cycle information, tape reuse
times and drive cleaning cycles.
Why: All three parts of this project are important when operating
backups.
We need to know which tapes need replacement, and we need to
make sure the drives are cleaned when necessary. While many
tape libraries and even autoloaders can handle all this
automatically, support by Bacula can be helpful for smaller
(older) libraries and single drives. Limiting the number of
times a tape is used might prevent tape errors when using
tapes until the drives can't read it any more. Also, checking
drive status during operation can prevent some failures (as I
[Arno] had to learn the hard way...)
Notes: First, Bacula could (and even does, to some limited extent)
record tape and drive usage. For tapes, the number of mounts,
the amount of data, and the time the tape has actually been
running could be recorded. Data fields for Read and Write
time and Number of mounts already exist in the catalog (I'm
not sure if VolBytes is the sum of all bytes ever written to
that volume by Bacula). This information can be important
when determining which media to replace. The ability to mark
Volumes as "used up" after a given number of write cycles
should also be implemented so that a tape is never actually
worn out. For the tape drives known to Bacula, similar
information is interesting to determine the device status and
expected life time: Time it's been Reading and Writing, number
of tape Loads / Unloads / Errors. This information is not yet
recorded as far as I [Arno] know. A new volume status would
be necessary for the new state, like "Used up" or "Worn out".
Volumes with this state could be used for restores, but not
for writing. These volumes should be migrated first (assuming
migration is implemented) and, once they are no longer needed,
could be moved to a Trash pool.
The next step would be to implement a drive cleaning setup.
Bacula already has knowledge about cleaning tapes. Once it
has some information about cleaning cycles (measured in drive
run time, number of tapes used, or calender days, for example)
it can automatically execute tape cleaning (with an
autochanger, obviously) or ask for operator assistance loading
a cleaning tape.
The final step would be to implement TAPEALERT checks not only
when changing tapes and only sending the information to the
administrator, but rather checking after each tape error,
checking on a regular basis (for example after each tape
file), and also before unloading and after loading a new tape.
Then, depending on the drives TAPEALERT state and the known
drive cleaning state Bacula could automatically schedule later
cleaning, clean immediately, or inform the operator.
Implementing this would perhaps require another catalog change
and perhaps major changes in SD code and the DIR-SD protocol,
so I'd only consider this worth implementing if it would
actually be used or even needed by many people.
Implementation of these projects could happen in three distinct
sub-projects: Measuring Tape and Drive usage, retiring
volumes, and handling drive cleaning and TAPEALERTs.
Item 24: Multiple threads in file daemon for the same job
Date: 27 November 2005
Origin: Ove Risberg (Ove.Risberg at octocode dot com)
Status:
What: I want the file daemon to start multiple threads for a backup
job so the fastest possible backup can be made.
The file daemon could parse the FileSet information and start
one thread for each File entry located on a separate
filesystem.
A confiuration option in the job section should be used to
enable or disable this feature. The confgutration option could
specify the maximum number of threads in the file daemon.
If the theads could spool the data to separate spool files
the restore process will not be much slower.
Why: Multiple concurrent backups of a large fileserver with many
disks and controllers will be much faster.
Item 25: Archival (removal) of User Files to Tape
Date: Nov. 24/2005
Origin: Ray Pengelly [ray at biomed dot queensu dot ca
Status:
What: The ability to archive data to storage based on certain parameters
such as age, size, or location. Once the data has been written to
storage and logged it is then pruned from the originating
filesystem. Note! We are talking about user's files and not
Bacula Volumes.
Why: This would allow fully automatic storage management which becomes
useful for large datastores. It would also allow for auto-staging
from one media type to another.
Example 1) Medical imaging needs to store large amounts of data.
They decide to keep data on their servers for 6 months and then put
it away for long term storage. The server then finds all files
older than 6 months writes them to tape. The files are then removed
from the server.
Example 2) All data that hasn't been accessed in 2 months could be
moved from high-cost, fibre-channel disk storage to a low-cost
large-capacity SATA disk storage pool which doesn't have as quick of
access time. Then after another 6 months (or possibly as one
storage pool gets full) data is migrated to Tape.
Item 26: Store and restore extended attributes, especially selinux file contexts
Date: 28 December 2007
Origin: Frank Sweetser <fs@wpi.edu>
Status: Done
What: The ability to store and restore extended attributes on
filesystems that support them, such as ext3.
Why: Security Enhanced Linux (SELinux) enabled systems make extensive
use of extended attributes. In addition to the standard user,
group, and permission, each file has an associated SELinux context
stored as an extended attribute. This context is used to define
which operations a given program is permitted to perform on that
file. Storing contexts on an SELinux system is as critical as
storing ownership and permissions. In the case of a full system
restore, the system will not even be able to boot until all
critical system files have been properly relabeled.
Notes: Fedora ships with a version of tar that has been patched to handle
extended attributes. The patch has not been integrated upstream
yet, so could serve as a good starting point.
http://linux.die.net/man/2/getxattr
http://linux.die.net/man/2/setxattr
http://linux.die.net/man/2/listxattr
===
http://linux.die.net/man/3/getfilecon
http://linux.die.net/man/3/setfilecon
Item 27: make changing "spooldata=yes|no" possible for
manual/interactive jobs
Origin: Marc Schiffbauer <marc@schiffbauer.net>
Date: 12 April 2007)
Status: Done
What: Make it possible to modify the spooldata option
for a job when being run from within the console.
Currently it is possible to modify the backup level
and the spooldata setting in a Schedule resource.
It is also possible to modify the backup level when using
the "run" command in the console.
But it is currently not possible to to the same
with "spooldata=yes|no" like:
run job=MyJob level=incremental spooldata=yes
Why: In some situations it would be handy to be able to switch
spooldata on or off for interactive/manual jobs based on
which data the admin expects or how fast the LAN/WAN
connection currently is.
Notes: ./.
Item 28: Implement an option to modify the last written date for volumes
Date: 16 September 2008
Origin: Franck (xeoslaenor at gmail dot com)
Status: Done
What: The ability to modify the last written date for a volume
Why: It's sometime necessary to jump a volume when you have a pool of volume
which recycles the oldest volume at each backup.
Sometime, it needs to cancel a set of backup (one day
backup, completely) and we want to avoid that bacula
choose the volume (which is not written at all) from
the cancelled backup (It has to jump to next volume).
in this case, we just need to update the written date
manually to avoir the "oldest volume" purge.
Notes: An option can be add to "update volume" command (like 'written date'
choice for example)
========= New Items since the last vote =================
Item 26: Add a new directive to bacula-dir.conf which permits inclusion of all subconfiguration files in a given directory
Date: 18 October 2008
Origin: Database, Lda. Maputo, Mozambique
Contact:Cameron Smith / cameron.ord@database.co.mz
Status: New request
What: A directive something like "IncludeConf = /etc/bacula/subconfs" Every
time Bacula Director restarts or reloads, it will walk the given
directory (non-recursively) and include the contents of any files
therein, as though they were appended to bacula-dir.conf
Why: Permits simplified and safer configuration for larger installations with
many client PCs. Currently, through judicious use of JobDefs and
similar directives, it is possible to reduce the client-specific part of
a configuration to a minimum. The client-specific directives can be
prepared according to a standard template and dropped into a known
directory. However it is still necessary to add a line to the "master"
(bacula-dir.conf) referencing each new file. This exposes the master to
unnecessary risk of accidental mistakes and makes automation of adding
new client-confs, more difficult (it is easier to automate dropping a
file into a dir, than rewriting an existing file). Ken has previously
made a convincing argument for NOT including Bacula's core configuration
in an RDBMS, but I believe that the present request is a reasonable
extension to the current "flat-file-based" configuration philosophy.
Notes: There is NO need for any special syntax to these files. They should
contain standard directives which are simply "inlined" to the parent
file as already happens when you explicitly reference an external file.
Item n: List inChanger flag when doing restore.
Origin: Jesper Krogh<jesper@krogh.cc>
Date: 17 oct. 2008
Status:
What: When doing a restore the restore selection dialog ends by telling stuff
like this:
The job will require the following
Volume(s) Storage(s) SD Device(s)
===========================================================================
000741L3 LTO-4 LTO3
000866L3 LTO-4 LTO3
000765L3 LTO-4 LTO3
000764L3 LTO-4 LTO3
000756L3 LTO-4 LTO3
001759L3 LTO-4 LTO3
001763L3 LTO-4 LTO3
001762L3 LTO-4 LTO3
001767L3 LTO-4 LTO3
When having an autochanger, it would be really nice with an inChanger
column so the operator knew if this restore job would stop waiting for
operator intervention. This is done just by selecting the inChanger flag
from the catalog and printing it in a seperate column.
Why: This would help getting large restores through minimizing the
time spent waiting for operator to drop by and change tapes in the library.
Notes: [Kern] I think it would also be good to have the Slot as well,
or some indication that Bacula thinks the volume is in the autochanger
because it depends on both the InChanger flag and the Slot being
valid.
Item 1: Implement an interface between Bacula and Amazon's S3.
Date: 25 August 2008
Origin: Soren Hansen <soren@ubuntu.com>
Status: Not started.
What: Enable the storage daemon to store backup data on Amazon's
S3 service.
Why: Amazon's S3 is a cheap way to store data off-site. Current
ways to integrate Bacula and S3 involve storing all the data
locally and syncing them to S3, and manually fetching them
again when they're needed. This is very cumbersome.
Item 1: enable/disable compression depending on storage device (disk/tape)
Origin: Ralf Gross ralf-lists@ralfgross.de
Date: 2008-01-11
Status: Initial Request
What: Add a new option to the storage resource of the director. Depending
on this option, compression will be enabled/disabled for a device.
Why: If different devices (disks/tapes) are used for full/diff/incr
backups, software compression will be enabled for all backups
because of the FileSet compression option. For backup to tapes
wich are able to do hardware compression this is not desired.
Notes:
http://news.gmane.org/gmane.comp.sysutils.backup.bacula.devel/cutoff=11124
It must be clear to the user, that the FileSet compression option
must still be enabled use compression for a backup job at all.
Thus a name for the new option in the director must be
well-defined.
Notes: KES I think the Storage definition should probably override what
is in the Job definition or vice-versa, but in any case, it must
be well defined.
Item 1: Backup and Restore of Windows Encrypted Files through raw encryption
functions
Origin: Michael Mohr, SAG Mohr.External@infineon.com
Date: 22 February 2008
Status:
What: Make it possible to backup and restore Encypted Files from and to
Windows systems without the need to decrypt it by using the raw
encryption functions API (see:
http://msdn2.microsoft.com/en-us/library/aa363783.aspx)
that is provided for that reason by Microsoft.
If a file ist encrypted could be examined by evaluating the
FILE_ATTRIBUTE_ENCRYTED flag of the GetFileAttributes
function.
Why: Without the usage of this interface the fd-daemon running
under the system account can't read encypted Files because
the key needed for the decrytion is missed by them. As a result
actually encrypted files are not backed up
by bacula and also no error is shown while missing these files.
Notes: ./.
Item 1: Possibilty to schedule Jobs on last Friday of the month
Origin: Carsten Menke <bootsy52 at gmx dot net>
Date: 02 March 2008
Status:
What: Currently if you want to run your monthly Backups on the last
Friday of each month this is only possible with workarounds (e.g
scripting) (As some months got 4 Fridays and some got 5 Fridays)
The same is true if you plan to run your yearly Backups on the
last Friday of the year. It would be nice to have the ability to
use the builtin scheduler for this.
Why: In many companies the last working day of the week is Friday (or
Saturday), so to get the most data of the month onto the monthly
tape, the employees are advised to insert the tape for the
monthly backups on the last friday of the month.
Notes: To give this a complete functionality it would be nice if the
"first" and "last" Keywords could be implemented in the
scheduler, so it is also possible to run monthy backups at the
first friday of the month and many things more. So if the syntax
would expand to this {first|last} {Month|Week|Day|Mo-Fri} of the
{Year|Month|Week} you would be able to run really flexible jobs.
To got a certain Job run on the last Friday of the Month for example one could
then write
Run = pool=Monthly last Fri of the Month at 23:50
## Yearly Backup
Run = pool=Yearly last Fri of the Year at 23:50
## Certain Jobs the last Week of a Month
Run = pool=LastWeek last Week of the Month at 23:50
## Monthly Backup on the last day of the month
Run = pool=Monthly last Day of the Month at 23:50
Date: 20 March 2008
Origin: Frank Sweetser <fs@wpi.edu>
What: Add a new SD directive, "minimum spool size" (or similar). This
directive would specify a minimum level of free space available for
spooling. If the unused spool space is less than this level, any
new spooling requests would be blocked as if the "maximum spool
size" threshold had bee reached. Already spooling jobs would be
unaffected by this directive.
Why: I've been bitten by this scenario a couple of times:
Assume a maximum spool size of 100M. Two concurrent jobs, A and B,
are both running. Due to timing quirks and previously running jobs,
job A has used 99.9M of space in the spool directory. While A is
busy despooling to disk, B is happily using the remaining 0.1M of
spool space. This ends up in a spool/despool sequence every 0.1M of
data. In addition to fragmenting the data on the volume far more
than was necessary, in larger data sets (ie, tens or hundreds of
gigabytes) it can easily produce multi-megabyte report emails!
Item n?: Expand the Verify Job capability to verify Jobs older than the
last one. For VolumeToCatalog Jobs
Date: 17 Januar 2008
Origin: portrix.net Hamburg, Germany.
Contact: Christian Sabelmann
Status: 70% of the required Code is part of the Verify function since v. 2.x
What:
The ability to tell Bacula which Job should verify instead of
automatically verify just the last one.
Why:
It is sad that such a powerfull feature like Verify Jobs
(VolumeToCatalog) is restricted to be used only with the last backup Job
of a client. Actual users who have to do daily Backups are forced to
also do daily Verify Jobs in order to take advantage of this useful
feature. This Daily Verify after Backup conduct is not always desired
and Verify Jobs have to be sometimes scheduled. (Not necessarily
scheduled in Bacula). With this feature Admins can verify Jobs once a
Week or less per month, selecting the Jobs they want to verify. This
feature is also not to difficult to implement taking in account older bug
reports about this feature and the selection of the Job to be verified.
Notes: For the verify Job, the user could select the Job to be verified
from a List of the latest Jobs of a client. It would also be possible to
verify a certain volume. All of these would naturaly apply only for
Jobs whose file information are still in the catalog.
Item X: Add EFS support on Windows
Origin: Alex Ehrlich (Alex.Ehrlich-at-mail.ee)
Date: 05 August 2008
Status:
What: For each file backed up or restored by FD on Windows, check if
the file is encrypted; if so then use OpenEncryptedFileRaw,
ReadEncryptedFileRaw, WriteEncryptedFileRaw,
CloseEncryptedFileRaw instead of BackupRead and BackupWrite
API calls.
Why: Many laptop users utilize the EFS functionality today; so do.
some non-laptop ones, too.
Currently files encrypted by means of EFS cannot be backed up.
It means a Windows boutique cannot rely on Bacula as its
backup solution, at least when using Windows 2K, XPP,
"better" Vista etc on workstations, unless EFS is
forbidden by policies.
The current situation might result into "false sense of
security" among the end-users.
Notes: Using xxxEncryptedFileRaw API would allow to backup and
restore EFS-encrypted files without decrypting their data.
Note that such files cannot be restored "portably" (at least,
easily) but they would be restoreable to a different (or
reinstalled) Win32 machine; the restore would require setup
of a EFS recovery agent in advance, of course, and this shall
be clearly reflected in the documentation, but this is the
normal Windows SysAdmin's business.
When "portable" backup is requested the EFS-encrypted files
shall be clearly reported as errors.
See MSDN on the "Backup and Restore of Encrypted Files" topic:
http://msdn.microsoft.com/en-us/library/aa363783.aspx
Maybe the EFS support requires a new flag in the database for
each file, too?
Unfortunately, the implementation is not as straightforward as
1-to-1 replacement of BackupRead with ReadEncryptedFileRaw,
requiring some FD code rewrite to work with
encrypted-file-related callback functions.
encrypted-file-related callback functions.
========== Already implemented ================================
============= Empty Feature Request form ===========
Item n: One line summary ...
Date: Date submitted
Origin: Name and email of originator.
Status:
What: More detailed explanation ...
Why: Why it is important ...
Notes: Additional notes or features (omit if not used)
============== End Feature Request form ==============
========== Items on put hold by Kern ============================
Item h1: Split documentation
Origin: Maxx <maxxatworkat gmail dot com>
Date: 27th July 2006
Status: Approved, awaiting implementation
What: Split documentation in several books
Why: Bacula manual has now more than 600 pages, and looking for
implementation details is getting complicated. I think
it would be good to split the single volume in two or
maybe three parts:
1) Introduction, requirements and tutorial, typically
are useful only until first installation time
2) Basic installation and configuration, with all the
gory details about the directives supported 3)
Advanced Bacula: testing, troubleshooting, GUI and
ancillary programs, security managements, scripting,
etc.
Notes: This is a project that needs to be done, and will be implemented,
but it is really a developer issue of timing, and does not
needed to be included in the voting.
Item h2: Implement support for stacking arbitrary stream filters, sinks.
Date: 23 November 2006
Origin: Landon Fuller <landonf@threerings.net>
Status: Planning. Assigned to landonf.
What: Implement support for the following:
- Stacking arbitrary stream filters (eg, encryption, compression,
sparse data handling))
- Attaching file sinks to terminate stream filters (ie, write out
the resultant data to a file)
- Refactor the restoration state machine accordingly
Why: The existing stream implementation suffers from the following: - All
state (compression, encryption, stream restoration), is
global across the entire restore process, for all streams. There are
multiple entry and exit points in the restoration state machine, and
thus multiple places where state must be allocated, deallocated,
initialized, or reinitialized. This results in exceptional complexity
for the author of a stream filter.
- The developer must enumerate all possible combinations of filters
and stream types (ie, win32 data with encryption, without encryption,
with encryption AND compression, etc).
Notes: This feature request only covers implementing the stream filters/
sinks, and refactoring the file daemon's restoration
implementation accordingly. If I have extra time, I will also
rewrite the backup implementation. My intent in implementing the
restoration first is to solve pressing bugs in the restoration
handling, and to ensure that the new restore implementation
handles existing backups correctly.
I do not plan on changing the network or tape data structures to
support defining arbitrary stream filters, but supporting that
functionality is the ultimate goal.
Assistance with either code or testing would be fantastic.
Notes: Kern: this project has a lot of merit, and we need to do it, but
it is really an issue for developers rather than a new feature
for users, so I have removed it from the voting list, but kept it
here, but at some point, it will be implemented.
Item h3: Filesystem watch triggered backup.
Date: 31 August 2006
Origin: Jesper Krogh <jesper@krogh.cc>
Status:
What: With inotify and similar filesystem triggeret notification
systems is it possible to have the file-daemon to monitor
filesystem changes and initiate backup.
Why: There are 2 situations where this is nice to have.
1) It is possible to get a much finer-grained backup than
the fixed schedules used now.. A file created and deleted
a few hours later, can automatically be caught.
2) The introduced load on the system will probably be
distributed more even on the system.
Notes: This can be combined with configration that specifies
something like: "at most every 15 minutes or when changes
consumed XX MB".
Kern Notes: I would rather see this implemented by an external program
that monitors the Filesystem changes, then uses the console
Item h4: Directive/mode to backup only file changes, not entire file
Date: 11 November 2005
Origin: Joshua Kugler <joshua dot kugler at uaf dot edu>
Marek Bajon <mbajon at bimsplus dot com dot pl>
Status:
What: Currently when a file changes, the entire file will be backed up in
the next incremental or full backup. To save space on the tapes
it would be nice to have a mode whereby only the changes to the
file would be backed up when it is changed.
Why: This would save lots of space when backing up large files such as
logs, mbox files, Outlook PST files and the like.
Notes: This would require the usage of disk-based volumes as comparing
files would not be feasible using a tape drive.
Notes: Kern: I don't know how to implement this. Put on hold until someone
provides a detailed implementation plan.
Item h5: Implement multiple numeric backup levels as supported by dump
Date: 3 April 2006
Origin: Daniel Rich <drich@employees.org>
Status:
What: Dump allows specification of backup levels numerically instead of just
"full", "incr", and "diff". In this system, at any given level,
all files are backed up that were were modified since the last
backup of a higher level (with 0 being the highest and 9 being the
lowest). A level 0 is therefore equivalent to a full, level 9 an
incremental, and the levels 1 through 8 are varying levels of
differentials. For bacula's sake, these could be represented as
"full", "incr", and "diff1", "diff2", etc.
Why: Support of multiple backup levels would provide for more advanced
backup rotation schemes such as "Towers of Hanoi". This would
allow better flexibility in performing backups, and can lead to
shorter recover times.
Notes: Legato Networker supports a similar system with full, incr, and 1-9 as
levels.
Notes: Kern: I don't see the utility of this, and it would be a *huge*
modification to existing code.
Item h6: Implement NDMP protocol support
Origin: Alan Davis
Date: 06 March 2007
Status:
What: Network Data Management Protocol is implemented by a number of
NAS filer vendors to enable backups using third-party
software.
Why: This would allow NAS filer backups in Bacula without incurring
the overhead of NFS or SBM/CIFS.
Notes: Further information is available:
http://www.ndmp.org
http://www.ndmp.org/wp/wp.shtml
http://www.traakan.com/ndmjob/index.html
There are currently no viable open-source NDMP
implementations. There is a reference SDK and example
app available from ndmp.org but it has problems
compiling on recent Linux and Solaris OS'. The ndmjob
reference implementation from Traakan is known to
compile on Solaris 10.
Notes: Kern: I am not at all in favor of this until NDMP becomes
an Open Standard or until there are Open Source libraries
that interface to it.
Item h7: Commercial database support
Origin: Russell Howe <russell_howe dot wreckage dot org>
Date: 26 July 2006
Status:
What: It would be nice for the database backend to support more databases.
I'm thinking of SQL Server at the moment, but I guess Oracle, DB2,
MaxDB, etc are all candidates. SQL Server would presumably be
implemented using FreeTDS or maybe an ODBC library?
Why: We only really have one database server, which is MS SQL Server 2000.
Maintaining a second one for the backup software (we grew out of
SQLite, which I liked, but which didn't work so well with our
database size). We don't really have a machine with the resources
to run postgres, and would rather only maintain a single DBMS.
We're stuck with SQL Server because pretty much all the company's
custom applications (written by consultants) are locked into SQL
Server 2000. I can imagine this scenario is fairly common, and it
would be nice to use the existing properly specced database server
for storing Bacula's catalog, rather than having to run a second
DBMS.
Notes: This might be nice, but someone other than me will probably need to
implement it, and at the moment, proprietary code cannot legally
be mixed with Bacula GPLed code. This would be possible only
providing the vendors provide GPLed (or OpenSource) interface
code.
Item h8: Incorporation of XACML2/SAML2 parsing
Date: 19 January 2006
Origin: Adam Thornton <athornton@sinenomine.net>
Status: Blue sky
What: XACML is "eXtensible Access Control Markup Language" and "SAML is
the "Security Assertion Markup Language"--an XML standard for
making statements about identity and authorization. Having these
would give us a framework to approach ACLs in a generic manner,
and in a way flexible enough to support the four major sorts of
ACLs I see as a concern to Bacula at this point, as well as
(probably) to deal with new sorts of ACLs that may appear in the
future.
Why: Bacula is beginning to need to back up systems with ACLs that do not
map cleanly onto traditional Unix permissions. I see four sets of
ACLs--in general, mutually incompatible with one another--that
we're going to need to deal with. These are: NTFS ACLs, POSIX
ACLs, NFSv4 ACLS, and AFS ACLS. (Some may question the relevance
of AFS; AFS is one of Sine Nomine's core consulting businesses,
and having a reputable file-level backup and restore technology
for it (as Tivoli is probably going to drop AFS support soon since
IBM no longer supports AFS) would be of huge benefit to our
customers; we'd most likely create the AFS support at Sine Nomine
for inclusion into the Bacula (and perhaps some changes to the
OpenAFS volserver) core code.)
Now, obviously, Bacula already handles NTFS just fine. However, I
think there's a lot of value in implementing a generic ACL model,
so that it's easy to support whatever particular instances of ACLs
come down the pike: POSIX ACLS (think SELinux) and NFSv4 are the
obvious things arriving in the Linux world in a big way in the
near future. XACML, although overcomplicated for our needs,
provides this framework, and we should be able to leverage other
people's implementations to minimize the amount of work *we* have
to do to get a generic ACL framework. Basically, the costs of
implementation are high, but they're largely both external to
Bacula and already sunk.
Notes: As you indicate this is a bit of "blue sky" or in other words,
at the moment, it is a bit esoteric to consider for Bacula.
Item h9: Archive data
Date: 15/5/2006
Origin: calvin streeting calvin at absentdream dot com
Status:
What: The abilty to archive to media (dvd/cd) in a uncompressed format
for dead filing (archiving not backing up)
Why: At work when jobs are finished and moved off of the main
file servers (raid based systems) onto a simple Linux
file server (ide based system) so users can find old
information without contacting the IT dept.
So this data dosn't realy change it only gets added to,
But it also needs backing up. At the moment it takes
about 8 hours to back up our servers (working data) so
rather than add more time to existing backups i am trying
to implement a system where we backup the acrhive data to
cd/dvd these disks would only need to be appended to
(burn only new/changed files to new disks for off site
storage). basialy understand the differnce between
achive data and live data.
Notes: Scan the data and email me when it needs burning divide
into predefined chunks keep a recored of what is on what
disk make me a label (simple php->mysql=>pdf stuff) i
could do this bit ability to save data uncompresed so
it can be read in any other system (future proof data)
save the catalog with the disk as some kind of menu
system
Notes: Kern: I don't understand this item, and in any case, if it
is specific to DVD/CDs, which we do not recommend using,
it is unlikely to be implemented except as a user
submitted patch.
Item h10: Clustered file-daemons
Origin: Alan Brown ajb2 at mssl dot ucl dot ac dot uk
Date: 24 July 2006
Status:
What: A "virtual" filedaemon, which is actually a cluster of real ones.
Why: In the case of clustered filesystems (SAN setups, GFS, or OCFS2, etc)
multiple machines may have access to the same set of filesystems
For performance reasons, one may wish to initate backups from
several of these machines simultaneously, instead of just using
one backup source for the common clustered filesystem.
For obvious reasons, normally backups of $A-FD/$PATH and
B-FD/$PATH are treated as different backup sets. In this case
they are the same communal set.
Likewise when restoring, it would be easier to just specify
one of the cluster machines and let bacula decide which to use.
This can be faked to some extent using DNS round robin entries
and a virtual IP address, however it means "status client" will
always give bogus answers. Additionally there is no way of
spreading the load evenly among the servers.
What is required is something similar to the storage daemon
autochanger directives, so that Bacula can keep track of
operating backups/restores and direct new jobs to a "free"
client.
Notes: Kern: I don't understand the request enough to be able to
implement it. A lot more design detail should be presented
before voting on this project.
Feature Request Form
Item n: Data encryption on storage daemon
Origin: Tobias Barth <tobias.barth at web-arts.com>
Date: 04 February 2009
Status: new
What: The storage demon should be able to do the data encryption that can currently be done by the file daemon.
Why: This would have 2 advantages: 1) one could encrypt the data of unencrypted tapes by doing a migration job, and 2) the storage daemon would be the only machine that would have to keep the encryption keys.
Item 1: "Maximum Concurrent Jobs" for drives when used with changer device
Origin: Ralf Gross ralf-lists <at> ralfgross.de
Date: 2008-12-12
Status: Initial Request
What: respect the "Maximum Concurrent Jobs" directive in the _drives_
Storage section in addition to the changer section
Why: I have a 3 drive changer where I want to be able to let 3 concurrent
jobs run in parallel. But only one job per drive at the same time.
Right now I don't see how I could limit the number of concurrent jobs
per drive in this situation.
Notes: Using different priorities for these jobs lead to problems that other
jobs are blocked. On the user list I got the advice to use the "Prefer Mounted
Volumes" directive, but Kern advised against using "Prefer Mounted
Volumes" in an other thread:
http://article.gmane.org/gmane.comp.sysutils.backup.bacula.devel/11876/
In addition I'm not sure if this would be the same as respecting the
drive's "Maximum Concurrent Jobs" setting.
Example:
Storage {
Name = Neo4100
Address = ....
SDPort = 9103
Password = "wiped"
Device = Neo4100
Media Type = LTO4
Autochanger = yes
Maximum Concurrent Jobs = 3
}
Storage {
Name = Neo4100-LTO4-D1
Address = ....
SDPort = 9103
Password = "wiped"
Device = ULTRIUM-TD4-D1
Media Type = LTO4
Maximum Concurrent Jobs = 1
}
[2 more drives]
The "Maximum Concurrent Jobs = 1" directive in the drive's section is ignored.
Item n: Add MaxVolumeSize/MaxVolumeBytes statement to Storage resource
Origin: Bastian Friedrich <bastian.friedrich@collax.com>
Date: 2008-07-09
Status: -
What: SD has a "Maximum Volume Size" statement, which is deprecated
and superseded by the Pool resource statement "Maximum Volume Bytes". It
would be good if either statement could be used in Storage resources.
Why: Pools do not have to be restricted to a single storage
type/device; thus, it may be impossible to define Maximum Volume Bytes in
the Pool resource. The old MaxVolSize statement is deprecated, as it is
SD side only.
I am using the same pool for different devices.
Notes: State of idea currently unknown. Storage resources in the dir
config currently translate to very slim catalog entries; these entries
would require extensions to implement what is described here. Quite
possibly, numerous other statements that are currently available in Pool
resources could be used in Storage resources too quite well.
Item 1: Start spooling even when waiting on tape
Origin: Tobias Barth <tobias.barth@web-arts.com>
Date: 25 April 2008
Status:
What: If a job can be spooled to disk before writing it to tape, it
should be spooled immediately.
Currently, bacula waits until the correct tape is inserted
into the drive.
Why: It could save hours. When bacula waits on the operator who
must insert the correct tape (e.g. a new
tape or a tape from another media pool), bacula could already
prepare the spooled data in the
spooling directory and immediately start despooling when the
tape was inserted by the operator.
2nd step: Use 2 or more spooling directories. When one directory is
currently despooling, the next (on different
disk drives) could already be spooling the next data.
Notes: I am using bacula 2.2.8, which has none of those features
implemented.
Item 1: enable persistent naming/number of SQL queries
Date: 24 Jan, 2007
Origin: Mark Bergman
Status:
What:
Change the parsing of the query.sql file and the query command so that
queries are named/numbered by a fixed value, not their order in the
file.
Why:
One of the real strengths of bacula is the ability to query the
database, and the fact that complex queries can be saved and
referenced from a file is very powerful. However, the choice
of query (both for interactive use, and by scripting input
to the bconsole command) is completely dependent on the order
within the query.sql file. The descriptve labels are helpful for
interactive use, but users become used to calling a particular
query "by number", or may use scripts to execute queries. This
presents a problem if the number or order of queries in the file
changes.
If the query.sql file used the numeric tags as a real value (rather
than a comment), then users could have a higher confidence that they
are executing the intended query, that their local changes wouldn't
conflict with future bacula upgrades.
For scripting, it's very important that the intended query is
what's actually executed. The current method of parsing the
query.sql file discourages scripting because the addition or
deletion of queries within the file will require corresponding
changes to scripts. It may not be obvious to users that deleting
query "17" in the query.sql file will require changing all
references to higher numbered queries. Similarly, when new
bacula distributions change the number of "official" queries,
user-developed queries cannot simply be appended to the file
without also changing any references to those queries in scripts
or procedural documentation, etc.
In addition, using fixed numbers for queries would encourage more
user-initiated development of queries, by supporting conventions
such as:
queries numbered 1-50 are supported/developed/distributed by
with official bacula releases
queries numbered 100-200 are community contributed, and are
related to media management
queries numbered 201-300 are community contributed, and are
related to checksums, finding duplicated files across
different backups, etc.
queries numbered 301-400 are community contributed, and are
related to backup statistics (average file size, size per
client per backup level, time for all clients by backup level,
storage capacity by media type, etc.)
queries numbered 500-999 are locally created
Notes:
Alternatively, queries could be called by keyword (tag), rather
than by number.
Item n: List inChanger flag when doing restore.
Origin: Jesper Krogh<jesper@krogh.cc>
Date: 17 oct. 2008
Status:
What:
When doing a restore the restore selection dialog ends by telling stuff
like this:
The job will require the following
Volume(s) Storage(s) SD Device(s)
===========================================================================
000741L3 LTO-4 LTO3
000866L3 LTO-4 LTO3
000765L3 LTO-4 LTO3
000764L3 LTO-4 LTO3
000756L3 LTO-4 LTO3
001759L3 LTO-4 LTO3
001763L3 LTO-4 LTO3
001762L3 LTO-4 LTO3
001767L3 LTO-4 LTO3
Item 26: Add a new directive to bacula-dir.conf which permits inclusion of all subconfiguration files in a given directory
Date: 18 October 2008
Origin: Database, Lda. Maputo, Mozambique
Contact:Cameron Smith / cameron.ord@database.co.mz
Status: New request
What: A directive something like "IncludeConf = /etc/bacula/subconfs"
Every time Bacula Director restarts or reloads, it will walk the given directory (non-recursively) and include the contents of any files therein, as though they were appended to bacula-dir.conf
Why: Permits simplified and safer configuration for larger installations with many client PCs.
Currently, through judicious use of JobDefs and similar directives, it is possible to reduce the client-specific part of a configuration to a minimum.
The client-specific directives can be prepared according to a standard template and dropped into a known directory. However it is still necessary to
add a line to the "master" (bacula-dir.conf) referencing each new file.
This exposes the master to unnecessary risk of accidental mistakes and makes automation of adding new client-confs, more difficult
(it is easier to automate dropping a file into a dir, than rewriting an existing file).
Ken has previously made a convincing argument for NOT including Bacula's core configuration in an RDBMS, but I believe that the present request is a reasonable
extension to the current "flat-file-based" configuration philosophy.
Notes: There is NO need for any special syntax to these files.
They should contain standard directives which are simply "inlined" to the parent file as already happens when you explicitly reference an external file.
Notes: (kes) this can already be done with scripting
From: John Jorgensen <jorgnsn@lcd.uregina.ca>
The bacula-dir.conf at our site contains these lines:
#
# Include subfiles associated with configuration of clients.
# They define the bulk of the Clients, Jobs, and FileSets.
#
@|"sh -c 'for f in /etc/bacula/clientdefs/*.conf ; do echo @${f} ; done'"
and when we get a new client, we just put its configuration into
a new file called something like:
/etc/bacula/clientdefs/clientname.conf
|