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https://issues.apache.org/jira/browse/CLOUDSTACK-9008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983282#comment-14983282
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Mike Tutkowski commented on CLOUDSTACK-9008:
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I believe I see the problem. It is two fold:
1) Marvin was silently ignoring a parameter related to managed storage.
2) Without this parameter, the SAN volume to support the SR was not large
enough to accommodate the space needs of the revert hypervisor snapshot command.
I believe we already have a ticket logged (probably from more than a year ago)
that says the vmopsSnapshot command should be throwing an exception in this
situation and not corrupting data.
I plan to fix Marvin.
> VM Snapshots no longer work with managed storage
> ------------------------------------------------
>
> Key: CLOUDSTACK-9008
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9008
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.6.0
> Environment: XenServer 6.5
> Reporter: Mike Tutkowski
> Assignee: Mike Tutkowski
> Priority: Blocker
> Fix For: 4.6.0
>
>
> When using managed storage for the root disk of a VM, you cannot revert a VM
> to a VM snapshot without encountering a RuntimeException that destroys the
> state of your disk.
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