This was previously opened as PR but prematurely closed:
https://github.com/apache/cloudstack/pull/1931
https://github.com/apache/cloudstack/pull/1932

Storage pool checker is not being called on resize and migrate volume.
This may lead to allocated percentage of storage above 100%.

Setup:
1 VMware cluster with 2 Hosts.

Executed Steps:

Applied the following global settings:
storage.overprovisioning.factor = 1
pool.storage.allocated.capacity.disablethreshold = 1
pool.storage.capacity.disablethreshold = 1
Restarted management server
Executed Resize and migrate pool and Observed that Storage pool checker is not 
performed on resizeVolume and migrateVolume.
Result:
Root cause analysis shows storage pool checker is not called when doing 
migration and resizing.

Signed-off-by: Rohit Yadav <[email protected]>

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[ Full content available at: https://github.com/apache/cloudstack/pull/2829 ]
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