Failed to create snapshot on primary storage. There are more than 10 names ...

[falkob]

Hello communiy !
I have a problem regarding Storage Snapshots from an IBM SVC.

I have a Job which has some file servers in it, which are round about 15 to 20 TB large.
The .vmdks which are about 1 TB large are located on several datastores.
So we have 2 machines which have 12 and 14 disks located on 12 or 14 datastores.

If we do a Storage Snapshot of these VM's, iam getting the following error:
FYI: This is a Snapshot only job, which creates Snapshots 4 times a day.

Code: Select all

Failed to create snapshot on primary storage. There are more than 10 names VeeamProductionSnapsot_SSNAP_ONLY.2018-12-07-0812

Corresponding Log File:

Code: Select all

[07.12.2018 12:35:42] <01> Error    [SanSnapshotSource] Failed to create production snapshot and retain old snapshot for volume: 'ESXWSVBKVD132' ('234').
[07.12.2018 12:35:42] <01> Error    There are more than 10 names VeeamProductionSnapshot_SSNAP_ONLY.2018-12-07-1235 already. (Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginException)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.StorageClientLogged.CreateProductionSnapshot(String volumeId, String backupJobName)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginProductionSnapshotCreator.CreateSnapshotInternal(IStorageClient client, CSanVolume volume)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginProductionSnapshotCreator.CreateProductionSnapshot(CSanVolume volume, IXmlLogger sessionLogger)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.Core.CSanProductionSnapshotOperations.CreateAndRetainSnapshot(ISanProductionSnapshotCreator snapshotCreator, CSanVolume volume, Boolean isProdactionSnapshotsForTransfer)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.Core.CSanProductionSnapshotOperations.CreateAndRetainProductionSnapshotsSafe(ISanPluginCoreHelpers sanPluginHelpers, CSanHost sanHost, IEnumerable`1 volumes, Boolean isProdactionSnapshotsForTransfer)
[07.12.2018 12:35:42] <01> Info     [SanSnapshotSource]===========================================================================================
[07.12.2018 12:35:42] <01> Error    [SanSnapshotSource] Create storage source snapshot failed, set session record to warning.
[07.12.2018 12:35:42] <01> Error    There are more than 10 names VeeamProductionSnapshot_SSNAP_ONLY.2018-12-07-1235 already. (Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginException)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.StorageClientLogged.CreateProductionSnapshot(String volumeId, String backupJobName)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginProductionSnapshotCreator.CreateSnapshotInternal(IStorageClient client, CSanVolume volume)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.SanPlugin.PublicStorage.CPublicPluginProductionSnapshotCreator.CreateProductionSnapshot(CSanVolume volume, IXmlLogger sessionLogger)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.Core.CSanProductionSnapshotOperations.CreateAndRetainSnapshot(ISanProductionSnapshotCreator snapshotCreator, CSanVolume volume, Boolean isProdactionSnapshotsForTransfer)
[07.12.2018 12:35:42] <01> Error       at Veeam.Backup.Core.CSanProductionSnapshotOperations.CreateAndRetainProductionSnapshotsSafe(ISanPluginCoreHelpers sanPluginHelpers, CSanHost sanHost, IEnumerable`1 volumes, Boolean isProdactionSnapshotsForTransfer)

Is there any registry parameter to change this behaviour ? I think i've ran into some kind of limitaton.

Thank you and Best Regards !
Falko

[falkob]

My bad...

am i running into this :

https://helpcenter.veeam.com/docs/backu ... tml?ver=95

-> Limit processed VM count per storage snapshot to "Number"

Regards !

Falko

[falkob]

Ok,

i think the setting i've mentioned has nothing to do with the error iam getting.
Does anybody know what the problem might be here ?

Thank you for your input.

Best Regards !

Falko

[falkob]

Are there any thoughts on this topic ?

Thank you all !

Best Regards !

Falko

[foggy]

Hi Falko, looking into it, will have an update later today. Thanks!

[foggy]

Currently there's a hardcoded limit (10) for the number of snapshots with similar names that differ by prefix only. In U4 this limit will be increased and there will be a registry value to change it as well.

[falkob]

Hello foggy,
thank you very much for this information !
In the meantime we opened a case for this issue. The case number is the following:: #03322131

We are running some tests in this case to verify if the hard limit is really the root cause on this problem.

Il update it here as soon as i have new information.

Thank you so far !

Best Regards

Falko

[falkob]

Quick update on this topic:

Veeam B&R 9.5 Update 4 really fixed the issue. The error has been fixed within U4 due to the increase of 10 hardcoded snapshots.
Thanks @ Veeam !