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BastiaanvanH
Contributor
Contributor

Delete small snapshot slow

Hi, we have a DC with 4x ESXi 5.1U1 with vCenter 5.1U1 and vCloud Director 5.1.2 . We use Veeam v7.0 to backup all VM's, and one of the VM's takes a very long time in deleting the snapshot. 12 minutes with only 25MB to commit. The VM itself doenst have any pre-snapshots, and doesnt have any performance issue's. The VM is a Windows Server 2012 Domain Controller. No Windows Event logs around this issue. All VM's reside on the same clustered HP Lefthand storage.

Removing small snapshots of other VM's on same ESXi, same VMFS takes few seconds.

Any idea's what could be the issue here?

4 Replies
vMariaL
Enthusiast
Enthusiast

Hi BastiaanvanH, thank you for chosing Veeam! Veeam Backup & Replication doesn't commit VM snapshot, it just sends the API call to vCenter Server to run this procedure. Have a look at this discussion on Veeam Community Forums, it might be helpful - Snapshot removal issues of a large VM. This thread contains possible tweaks that can help you to workaround this snapshot behavior.

Just to make sure - did you apply Patch 1 for Veeam Backup & Replication v7? Please check Release Notes before installing this patch.

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Veeam Community Manager

---- Veeam Community Manager
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ch1ta
Hot Shot
Hot Shot

Also, I’m wondering whether you have tried to manually reproduce this situation without Veeam. You can take the snapshot of your production VM manually, keep the snapshot open for long enough time before deleting it, similar to time it takes to backup the VM, and see if you experience this issue or not.

Thanks.

BastiaanvanH
Contributor
Contributor

Hi, thank you for your reply's. We've been very busy with analysing this problem. We have narrowed it down to fast provisioned thin VM's. Just thin or thick a commit is 30 seconds. A VM fast provisioned VM takes something between 10 to 30 minutes.

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BastiaanvanH
Contributor
Contributor

Anyone a solution/approuch for solving this?

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