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========================
Storage capacity balance
========================
Synopsis
--------
**display name**: ``Storage Capacity Balance Strategy``
**goal**: ``workload_balancing``
.. watcher-term:: watcher.decision_engine.strategy.strategies.storage_capacity_balance.StorageCapacityBalance
Requirements
------------
Metrics
*******
None
Cluster data model
******************
Storage cluster data model is required:
.. watcher-term:: watcher.decision_engine.model.collector.cinder.CinderClusterDataModelCollector
Actions
*******
Default Watcher's actions:
.. list-table::
:widths: 25 35
:header-rows: 1
* - action
- description
* - ``volume_migrate``
- .. watcher-term:: watcher.applier.actions.volume_migration.VolumeMigrate
Planner
*******
Default Watcher's planner:
.. watcher-term:: watcher.decision_engine.planner.weight.WeightPlanner
Configuration
-------------
Strategy parameter is:
==================== ====== ============= =====================================
parameter type default Value description
==================== ====== ============= =====================================
``volume_threshold`` Number 80.0 Volume threshold for capacity balance
==================== ====== ============= =====================================
Efficacy Indicator
------------------
None
Algorithm
---------
For more information on the storage capacity balance strategy please refer to:
http://specs.openstack.org/openstack/watcher-specs/specs/queens/implemented/storage-capacity-balance.html
How to use it ?
---------------
.. code-block:: shell
$ openstack optimize audittemplate create \
at1 workload_balancing --strategy storage_capacity_balance
$ openstack optimize audit create -a at1 \
-p volume_threshold=85.0
External Links
--------------
None
|
