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Volume shadow copy disk on a VM

Created: 03 Oct 2013 • Updated: 03 Oct 2013 | 2 comments

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Any one knows what will happen to a Volume shadow copy disk on a VM during full and incremental backups? VM is W2K8 R2 with a boot disk + data disk + Vol Shadow Copy disk which keeps snapshots for data disk. A new VSS snapshot is created each day and oldest snapshot deleted when Vol shadow copy disk needs more space.

Operating Systems:

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Nicolai's picture

Try reading this rather old tech note: http://www.symantec.com/docs/TECH72361

If there is space enough I don't think there will happen anything.

Pls be aware VSS is a Microsoft component - Netbackup can't change the way VSS work.

Assumption is the mother of all mess ups.

If this post answered your'e qustion -  Please mark as a soloution.

vksingh's picture

Thanks Nicolai.

My questions are more around

1) Will Netbackup include the VSS disk in its backups? I think it would include it like a normal VMDK and thus I need to include it in my sizing. I have about 60TB worth of VSS disks in the environment.

2) What type of recovery would be possible from VSS disks? I think it will only used when a full VM is being restored. A Full VM will restore all VSS snapshots as they were. No file level recovery would be possible from the VSS disk

Anything else related to VSS disk on a VM which I should be aware of when design my soluition - what have others experienced.