1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802
|
/* Copyright (c) 1996-2004, Adaptec Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the Adaptec Corporation nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/****************************************************************************
*
* Created: 7/20/98
*
*****************************************************************************
*
* File Name: CreatRad.cpp
* Module:
* Contributors: Lee Page
* Description:
* Version Control:
*
* $Revision$
* $NoKeywords: $
* $Log$
* Revision 1.1.1.1 2004-04-29 10:20:12 bap
* Imported upstream version 0.0.4.
*
*****************************************************************************/
/*** INCLUDES ***/
#include <stdio.h>
#include "creatrad.hpp"
#include "intlist.hpp"
#include "rustring.h"
#include "rscenum.h"
extern char* EventStrings[];
/*** CONSTANTS ***/
/*** TYPES ***/
/*** STATIC DATA ***/
/*** MACROS ***/
/*** PROTOTYPES ***/
/*** FUNCTIONS ***/
Create_Raid::Create_Raid(
SCSI_Addr_List *addresses,
Raid_Type new_Raid_Type,
uLONG size_of_Stripe,
uLONG raid_Size_in_Blocks,
bool nobuildOption,
bool ignoreNonfatalErrorsOption,
int numDrivesPerArray,
SCSI_Addr_List *compsOmit
):
raid_Type( new_Raid_Type ),
stripe_Size( size_of_Stripe ),
address_List( addresses ),
desired_Raid_Size_in_Blocks( raid_Size_in_Blocks ),
nobuild(nobuildOption),
ignoreNonfatalErrors(ignoreNonfatalErrorsOption),
drivesPerArray (numDrivesPerArray),
comps_Omit (compsOmit)
{
ENTER( "Create_Raid::Create_Raid(" );
EXIT();
}
Create_Raid::Create_Raid( const Create_Raid &new_Create_Raid ):
raid_Type( new_Create_Raid.raid_Type ),
stripe_Size( new_Create_Raid.stripe_Size ),
address_List( new_Create_Raid.address_List ),
desired_Raid_Size_in_Blocks( new_Create_Raid.desired_Raid_Size_in_Blocks ),
nobuild(new_Create_Raid.nobuild),
ignoreNonfatalErrors(new_Create_Raid.ignoreNonfatalErrors),
drivesPerArray (new_Create_Raid.drivesPerArray),
comps_Omit (new_Create_Raid.comps_Omit)
{
ENTER( "Create_Raid::Create_Raid( const Create_Raid &new_Create_Raid ):" );
EXIT();
}
Create_Raid::~Create_Raid()
{
ENTER( "Create_Raid::~Create_Raid()" );
EXIT();
}
Command::Dpt_Error Create_Raid::Create(Raid_Type raidType,
int level,
Int_List *componentList,
uLONG stripeSize,
uLONG desiredRaidSizeInBlocks,
DPT_TAG_T *this_RAID_Tag)
{
ENTER( "Command::Dpt_Error Create_Raid::Create (Raid_Type raidType, int level, Int_List *componentList, uLONG stripeSize, uLONG desiredRaidSizeInBlocks, this_RAID_Tag)");
Dpt_Error err;
DPT_TAG_T this_HBAs_Tag;
bool hba_Index_Found;
raidCompList_S component;
memset (&component, 0, sizeof(raidCompList_S));
// verify the target hba
this_HBAs_Tag = Get_HBA_by_Index (targetHba, &hba_Index_Found);
if ( this_RAID_Tag != (DPT_TAG_T *) NULL)
{
*this_RAID_Tag = (DPT_TAG_T) NULL;
}
if( !hba_Index_Found )
{
err = Command::Dpt_Error::DPT_CMD_ERR_CANT_FIND_HBA_INDEX;
}
// Verify RAID-5 is supported by the hba
if ((!err.Is_Error()) && (raidType == RAID_TYPE_5))
{
err = engine->Send( MSG_GET_INFO, this_HBAs_Tag);
dptHBAinfo_S *hba_Info = engine->hbaInfo_P;
if (!(hba_Info->raidSupport & FLG_RAID_5))
{
err = Command::Dpt_Error::DPT_ERR_RAID_NOT_SUPPORTED;
}
}
if (!err.Is_Error())
{
raidHeader_S raid_Hdr;
memset (&raid_Hdr, 0, sizeof(raidHeader_S));
// set up the RAID header stuff
raid_Hdr.control = 0; // FLG_RCTL_ADDR;
raid_Hdr.refNum = raidType;
// if dual level array, don't limit the stripe size on top level
if (level == 1)
stripeSize = 0;
else if (stripeSize == 0) // If zero, use the defaults
{
switch (raidType)
{
case RAID_TYPE_0:
// get the default size from the hba
err = engine->Send(MSG_RAID_GET_LIMITS, this_HBAs_Tag);
if (!err.Is_Error())
{
dptArrayLimits_S limits;
engine->Extract(&limits, sizeof(dptArrayLimits_S));
int RAID0Stripe = limits.getR0defStripe();
// In case we got garbage
if (RAID0Stripe > 512) RAID0Stripe = 64;
// divide blocks in half ...
RAID0Stripe >>= 1;
// and multiply to get Ks
stripeSize = RAID0Stripe * 1024L;
}
break;
case RAID_TYPE_1:
// stripeSize = 128 * 1024L;
stripeSize = 64 * 1024L;
break;
case RAID_TYPE_5:
// get the default size from the hba
err = engine->Send(MSG_RAID_GET_LIMITS, this_HBAs_Tag);
if (!err.Is_Error())
{
dptArrayLimits_S limits;
engine->Extract(&limits, sizeof(dptArrayLimits_S));
// this gets the stripe size in BLOCKS
int RAID5Stripe = limits.getR5defStripe();
// In case we got garbage
if(RAID5Stripe > 512) RAID5Stripe = 64;
// divide blocks in half ...
RAID5Stripe >>= 1;
// and multiply to get Ks
stripeSize = RAID5Stripe * 1024L;
}
break;
default:
stripeSize = 64 * 1024L;
break;
}
}
if (!err.Is_Error())
{
raid_Hdr.stripeSize = stripeSize / 512L;
// if this "size" is zero, it means "use the maximum".
raid_Hdr.size = desiredRaidSizeInBlocks;
// set up the component header.
component.startLBA = 0;
component.stripeSize = stripeSize / 512L;
component.numStripes = 0;
engine->Reset ();
engine->Insert (&raid_Hdr, sizeof(raidHeader_S));
while (componentList->num_Left())
{
component.tag = componentList->get_Next_Item();
engine->Insert (&component, sizeof(raidCompList_S));
}
}
}
if( !err.Is_Error() )
{
err = engine->Send( MSG_RAID_NEW,
(level == 0) ? this_HBAs_Tag : (DPT_TAG_T) NULL);
if( !err.Is_Error()
&& ((raidType == RAID_TYPE_5) || (raidType == RAID_TYPE_1))
&& (this_RAID_Tag != (DPT_TAG_T *)NULL))
{
engine->Extract (this_RAID_Tag, sizeof(DPT_TAG_T));
}
if( !err.Is_Error() && raidType == RAID_TYPE_1 && !nobuild)
{
engine->Reset();
// this is a mirrored drive. We will default to copying from the
// first drive to the second...
err = engine->Send( MSG_RAID1_SET_TARGET, component.tag);
}
}
EXIT();
return( err );
}
Command::Dpt_Error Create_Raid::execute (String_List **output)
{
ENTER ("Command::Dpt_Error Create_Raid::execute (String_List **output)");
Dpt_Error err, busy_err;
String_List *out;
get_Devs_Type devType;
DPT_TAG_T tempTag;
SCSI_Address dummyAddr;
*output = out = new String_List();
Init_Engine();
engine->Reset();
bool component_Found = true;
bool tagValid = true;
// if hba or hba/bus specified (all), make new address list
if ((address_List->get_Num_Items() == 1) &&
(raid_Type != RAID_TYPE_HOT_SPARE))
{
// Fix / verify drivesPerArray according to raid
if (raid_Type == RAID_TYPE_1)
drivesPerArray = 2;
else if (((raid_Type == RAID_TYPE_0) &&
(drivesPerArray < 1)) ||
((raid_Type == RAID_TYPE_5) &&
(drivesPerArray < 3)))
{
err = Dpt_Error::DPT_ERR_RAID_TOO_FEW;
out->add_Item ((char *) err);
return (err);
}
// get this hba or hba/bus OUT OF THERE!!!
SCSI_Address tempAddr = address_List->shift_Item();
for (int devIndex = 0; component_Found; devIndex++)
{
tempTag = Get_Address_by_Index(tempAddr, devIndex,
&component_Found, &devType);
if ((component_Found) && (devType == GET_SCSI_DASD))
{
if (!comps_Omit->In_List (DPT_Tag_to_Address (tempTag, &tagValid)))
address_List->add_Item(DPT_Tag_to_Address (tempTag, &tagValid));
// if found the wanted # of drives, go ahead and make the raid
if (address_List->get_Num_Items() == drivesPerArray)
{
MakeGroupLists (output);
// take items out of list
for (int i = 0; i < drivesPerArray; i++)
dummyAddr = address_List->shift_Item();
}
}
else if (!component_Found && (devIndex == 0))
{
err = Dpt_Error::DPT_CMD_ERR_CANT_FIND_COMPONENT;
out->add_Item ((char *) err);
return (err);
}
}
}
if ((drivesPerArray == 0) && (address_List->get_Num_Items()))
{
// do this just for some protection in case user doesn't
// really know what HE is doing
drivesPerArray = 0;
MakeGroupLists (output);
}
EXIT();
return( err );
}
Command::Dpt_Error Create_Raid::MakeGroupLists (String_List **output)
{
int this_RAID_Type;
bool component_Found = true;
int group = -2;
Dpt_Error err, busy_err;
Int_List component_List;
Int_List group_List;
int is_Group_List_Valid = 0;
DPT_TAG_T this_RAID_Tag = (DPT_TAG_T) NULL;
String_List *out;
bool fromRedirect = false;
out = *output;
// The old DriveBusy class, leaving for a bit for
// logic verification from Mark Salyzyn.
//DPTDriveBusy * busy = new DPTDriveBusy();
component_Found = true;
while (component_Found && address_List->num_Left())
{
DPT_TAG_T component_Tag;
SCSI_Address component;
component_Tag = Get_Dev_by_Address_and_Type(GET_SCSI_DASD,
component = address_List->get_Next_Item(), &component_Found );
if ( group == -2 )
{
group = component.level;
}
if ( group != component.level )
{
group = -3;
}
if( component_Found )
{
#if !defined _DPT_LINUX
// Determine if the component is busy.
// This replaces the old DriveBusy class.
uLONG devStatus;
busy_err |= engine->Send( MSG_CHECK_BUSY, component_Tag );
// If busy_err = MSG_RTN_IGNORED, then the engine does not
// support this command. Simply treat as not busy.
if ((busy_err.Is_Error()) &&
(busy_err != Dpt_Error::DPT_MSG_RTN_IGNORED))
err |= busy_err;
if( !err.Is_Error() )
{
engine->Extract( &devStatus, sizeof(uLONG) );
// If 1, then this device is busy, otherwise
// the device is considered NOT busy.
if ( devStatus == 1 )
{
err = Dpt_Error::DPT_CMD_ERR_COMPONENT_BUSY;
}
}
/*
// OLD DriveBusy stuff.. Leaving here for logic verification.
if( busy->drvBusy( component.hba, component.bus,
component.id, component.lun ))
{
err = Dpt_Error::DPT_CMD_ERR_COMPONENT_BUSY;
}
*/
#endif
component_List.add_Item( component_Tag );
group_List.add_Item( component.level );
targetHba = component.hba;
}
else
{
err = Dpt_Error::DPT_CMD_ERR_CANT_FIND_COMPONENT;
}
}
is_Group_List_Valid = ( group == -3 );
int level = 0;
uLONG calcRaidSize = 0;
// Determine if it is necessary to construct multiple level arrays
if( !err.Is_Error() )
{
DPT_TAG_T component;
SCSI_Address saddr;
// If drive is NOT a redirect,
// leave the original list as it is.
// If drive IS a redirect, delete the redirect,
// get the new tag and put back in the original list.
address_List->reset_Next_Index();
component_List.reset_Next_Index();
component_Found = true;
while (component_Found && address_List->num_Left())
{
// variable created to keep track of component_List position
int next_Item_In_Component_List = 0;
saddr = address_List->get_Next_Item();
component = component_List.get_Next_Item();
next_Item_In_Component_List++;
err = engine->Send(MSG_GET_INFO, component);
if (engine->devInfo_P->raidType == RAID_TYPE_REDIRECT)
{
DPT_TAG_T newComponent, hbaTag;
//fromRedirect = true;
raidHeader_S hdr;
raidCompList_S cList;
memset (&hdr, 0, sizeof(raidHeader_S));
memset (&cList, 0, sizeof(raidCompList_S));
hdr.control = FLG_RCTL_ADDR;
// get the tag for the matching
// physical device and put in the list
bool compFound = true;
get_Devs_Type comp_Type;
for (int cmpIdx = 0; compFound; ++cmpIdx)
{
newComponent = Get_Component(component, cmpIdx, &compFound, &comp_Type);
err = engine->Send(MSG_GET_INFO, newComponent);
if (compFound && (comp_Type == GET_SCSI_DASD))
{
hbaTag = engine->devInfo_P->hbaTag;
hdr.refNum = raid_Type;
hdr.addr.hba = saddr.hba;
hdr.addr.chan = saddr.bus;
hdr.addr.id = saddr.id;
hdr.addr.lun = saddr.lun;
cList.tag = newComponent;
break;
}
else
err = Dpt_Error::DPT_CMD_ERR_CANT_FIND_COMPONENT;
}
// delete the redirect
engine->Reset();
err = engine->Send(MSG_DELETE, component);
// put the new tag in the list
component_List.set_Item((next_Item_In_Component_List - 1), newComponent);
// now send header and list and make the raid
engine->Insert (&hdr, sizeof(raidHeader_S));
engine->Insert (&cList, sizeof(raidCompList_S));
err = engine->Send (MSG_RAID_NEW, hbaTag);
}
// not a redirected drive
// leave entry alone
}
component_List.reset_Next_Index();
}
//Check all components for reserve conflict before attempting to create.
bool reserve_Conflict = false;
while (component_List.num_Left()){
DPT_TAG_T temp_comp_Tag = component_List.get_Next_Item();
engine->Reset();
err = engine->Send(MSG_GET_INFO, temp_comp_Tag);
if (engine->devInfo_P->flags3 & FLG_DEV_RES_CONFLICT)
reserve_Conflict = true;
}
component_List.reset_Next_Index();
int numDrvs = component_List.get_Num_Items();
//drives not counted in size calculation
int groupNum = 0;
// Check to see if TOTAL raid size exceeds 2TB limit, if it does, create fails
if (raid_Type == RAID_TYPE_1)
groupNum = numDrvs/2;
else if (raid_Type == RAID_TYPE_5){
if (is_Group_List_Valid) // RAID-50, one drive per RAID-5 group is not counted in size calculation
groupNum = group_List.get_Num_Uniques();
else //regular RAID-5 only one parity drive is not counted in the size calculation
groupNum = 1;
}
uLONG totalRaidSize = CalculateRaidSize(&component_List, groupNum);
const uLONG NUM_MB_IN_TWO_TB = 2097152;
if (totalRaidSize > NUM_MB_IN_TWO_TB)
err = Dpt_Error::DPT_ERR_TWO_TB_RAID;
component_List.reset_Next_Index();
if (!reserve_Conflict && !err.Is_Error()){
switch( this_RAID_Type = raid_Type )
{
case RAID_TYPE_1:
{
//
// Check for copying from a larger drive to a smaller drive.
// CR2789
//
component_List.reset_Next_Index();
while ( component_List.num_Left() >= 2 )
{
//
// Get the size of the source drive.
//
const DPT_TAG_T srcDriveTag = component_List.get_Next_Item();
engine->Reset();
err = engine->Send(MSG_GET_INFO, srcDriveTag);
const uLONG srcDriveSize = engine->devInfo_P->capacity.maxLBA;
//
// Get the size of the destination drive.
//
const DPT_TAG_T dstDriveTag = component_List.get_Next_Item();
engine->Reset();
err |= engine->Send(MSG_GET_INFO, dstDriveTag);
const uLONG dstDriveSize = engine->devInfo_P->capacity.maxLBA;
//
// Check if the source drive is larger than the destination drive.
//
if ( err.Success() )
{
if (( srcDriveSize > dstDriveSize ) && ( !ignoreNonfatalErrors ))
{
err = Dpt_Error::DPT_ERR_RAID_DIFF_CAPACITY;
break;
}
}
}
//
// If an error has occurred then don't proceed with creating the array.
//
if ( err.Failure() )
{
break;
}
component_List.reset_Next_Index();
int numComps = component_List.get_Num_Items();
if ((numComps > 2) && ((numComps & 1) == 0 ))
{
Int_List components;
// figure out the size of underlying arrays if limited size
if (desired_Raid_Size_in_Blocks)
{
int numGroups = numComps / 2;
calcRaidSize = desired_Raid_Size_in_Blocks / numGroups;
desired_Raid_Size_in_Blocks = 0;
}
while (component_List.num_Left())
{
Int_List pair;
DPT_TAG_T component;
component = component_List.get_Next_Item();
pair.add_Item (component);
component = component_List.get_Next_Item();
pair.add_Item (component);
err = Create (raid_Type, level, & pair,
stripe_Size, calcRaidSize, &this_RAID_Tag);
if( err.Is_Error())
{
break;
}
components.add_Item (this_RAID_Tag);
}
raid_Type = RAID_TYPE_0;
this_RAID_Type = 10;
component_List = components;
level = 1;
}
}
break;
case RAID_TYPE_5:
if (is_Group_List_Valid)
{
Int_List components;
int blksPerComp;
int numComps = component_List.get_Num_Items();
int numGroups = group_List.get_Num_Uniques();
int group = group_List.get_Next_Item();
numComps -= numGroups;
if (desired_Raid_Size_in_Blocks)
blksPerComp = desired_Raid_Size_in_Blocks / numComps;
component_List.reset_Next_Index();
DPT_TAG_T component = component_List.get_Next_Item();
while (component_List.num_Left())
{
Int_List groups;
int last_group = group;
while (group == last_group)
{
groups.add_Item (component);
if (component_List.num_Left () == 0)
{
break;
}
component = component_List.get_Next_Item();
group = group_List.get_Next_Item();
}
// get # components in this group -1 (for parity drive)
int numInThisGroup = groups.get_Num_Items() - 1;
// figure out the size of underlying arrays if limited size
if (desired_Raid_Size_in_Blocks)
calcRaidSize = blksPerComp * numInThisGroup;
err = Create (raid_Type, level, &groups, stripe_Size, calcRaidSize, &this_RAID_Tag);
if (err.Is_Error ())
{
break;
}
components.add_Item (this_RAID_Tag);
}
if (desired_Raid_Size_in_Blocks)
desired_Raid_Size_in_Blocks = 0;
raid_Type = RAID_TYPE_0;
this_RAID_Type = 50;
component_List = components;
level = 1;
}
break;
}
}
if (!err.Is_Error() && !fromRedirect && !reserve_Conflict)
{
err = Create(raid_Type, level, &component_List, stripe_Size, desired_Raid_Size_in_Blocks, & this_RAID_Tag);
}
// If there was a reserve conflict detected, create fails and user is informed of failure.
if (reserve_Conflict)
{
out->add_Item( EventStrings[STR_RESCONFLICT] );
}
if( err.Is_Error() )
{
out->add_Item ((char *) err);
//
// If the error relates to different capacities and this is RAID 1 then print
// an additional message explaining to the user how to get around the problem.
// CR2789
//
if (( err == Dpt_Error::DPT_ERR_RAID_DIFF_CAPACITY ) && ( raid_Type == 1 ))
{
out->add_Item(EventStrings[STR_MIRROR_MSG1]);
out->add_Item(EventStrings[STR_MIRROR_MSG2]);
out->add_Item(EventStrings[STR_MIRROR_MSG3]);
out->add_Item(EventStrings[STR_MIRROR_MSG4]);
out->add_Item(EventStrings[STR_MIRROR_MSG5]);
}
}
else
{
char address_Buf[ 80 ];
switch( raid_Type )
{
case RAID_TYPE_0:
case RAID_TYPE_1:
case RAID_TYPE_3:
case RAID_TYPE_5:
sprintf( address_Buf, "%s: %s %d",
EventStrings[STR_CREATED],
EventStrings[STR_RAID], this_RAID_Type );
break;
case RAID_TYPE_HOT_SPARE:
sprintf( address_Buf, "%s: %s",
EventStrings[STR_CREATED],
EventStrings[STR_RAID_HOT_SPARE]);
break;
case RAID_TYPE_REDIRECT:
sprintf( address_Buf, "%s: %s",
EventStrings[STR_CREATED],
EventStrings[STR_RAID_REDIRECT]);
break;
}
// out->add_Item( STR_SUCCESS );
out->add_Item( address_Buf );
out->add_Item( "\n" );
if ( this_RAID_Type >= 10 )
{
this_RAID_Tag = component_List.get_Item( 0 );
}
Commit (this_RAID_Tag, nobuild);
// out->add_Item( STR_REBOOT );
}
return( err );
}
//Function -
//Command::Dpt_Error Create_Raid::CalculateRaidSize (Int_List Comp_List, int groupNum) - start
//===========================================================================
//
//Description:
//
// This method takes in a component list of the drives to be used in creation, and
// the number of groups the drives are separated into to calculate total raid size before creation.
// If the raid is <2TB then the raid creation fails.
//
//---------------------------------------------------------------------------
uLONG Create_Raid::CalculateRaidSize (Int_List* drive_List, int groupNum)
{
drive_List->reset_Next_Index();
DPT_TAG_T smallestDriveTag = 0;
uLONG smallestDriveSize = 0;
uLONG currDriveSize = 0;
//parse through component list to calculate
while (drive_List->num_Left()){
//get drive tag for get info call
const DPT_TAG_T driveTag = drive_List->get_Next_Item();
engine->Reset();
engine->Send(MSG_GET_INFO, driveTag);
//get size of current drive
currDriveSize = engine->devInfo_P->capacity.maxLBA;
//if first time through, the smallest drive is set to the first drive found
if (smallestDriveTag == 0)
smallestDriveTag = driveTag;
else{
engine->Reset();
engine->Send(MSG_GET_INFO, smallestDriveTag);
smallestDriveSize = engine->devInfo_P->capacity.maxLBA;
// If a smaller drive is found, update smallestDriveTag
if (currDriveSize < smallestDriveSize)
smallestDriveTag = driveTag;
}
}
//get smallest drive size
engine->Reset();
engine->Send(MSG_GET_INFO, smallestDriveTag);
smallestDriveSize = engine->devInfo_P->capacity.maxLBA;
// convert from blocks to MB
uLONG drvSzInMB = smallestDriveSize/2048;
// drive_List.num_Items - groupNum refers to the drives not counted when calculating raid size
// for RAID-0 ALL drives are counted (groupNum == 0)
// for RAID-1 only half of the components count for size
// for RAID-5 one drive per group is not counted (parity drives)
uLONG raidSize = drvSzInMB * (drive_List->get_Num_Items() - groupNum);
return raidSize;
}
//Command::Dpt_Error Create_Raid::CalculateRaidSize (Int_List Comp_List, int groupNum) - end
Command &Create_Raid::Clone() const
{
ENTER( "Command &Create_Raid::Clone() const" );
EXIT();
return( *new Create_Raid( *this ) );
}
/*** END OF FILE ***/
|