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dbr
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NetApp snaps won't be deleted after vm move

Post by dbr » Feb 21, 2018 1:35 pm

Hi guys,

We use NetApp storage snapshots to backup a vm on a nfs volume hourly with a retention of 24 snapshots. After moving the only backed up vm within this job to another datastore the existing snapshots on the old volume weren't deleted by retention. Because of this that volume ran out of space. Regardless of a functional monitoring I would have expected that Veeam is intelligent enough to delete these snaps, especially since Veeam created them by itself. Support told me this is by design, but in my opinion Veeam should take care of volume snapshots it creates. Can an engineer comment on this matter?

Greets, Daniel.

dbr
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Re: NetApp snaps won't be deleted after vm move

Post by dbr » Feb 21, 2018 1:58 pm

Case # 02618753

foggy
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Re: NetApp snaps won't be deleted after vm move

Post by foggy » Feb 22, 2018 11:32 am

Hi Daniel, basically retention should maintain the configured total number of snapshots on both volumes. However, there might be issues in case SnapVault or SnapMirror are involved, since they lock the snapshots, resulting in inability to delete them.

dbr
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Re: NetApp snaps won't be deleted after vm move

Post by dbr » Feb 22, 2018 11:52 am

Hi Alex,

there's no SnapVault or SnapMirror for these volumes involved. The support engineer told me that he can confirm this behaviour and said this is by design. The only thing I can tell for sure is that in our current configuration the old 24 snapshots were left on the old volume and Veeam started to create 24 new ones on the current volume. As I wrote, at the moment we only backup one vm with storage snapshot. Therefore there's no job that would access the old volume after storage migration of the vm to another volume. If Veeam should really maintain snashots on both volumes in this case then I suggest to open a new case and ask for escalation directly? Do you agree?

Daniel

foggy
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Re: NetApp snaps won't be deleted after vm move

Post by foggy » Feb 26, 2018 4:03 pm

We've checked this internally, indeed, snapshots on the old volume are not subjected to retention. We will discuss the ability to change this behavior, thanks for reporting!

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