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Full Name: Mike Godwin

ESXi Thin Provisioning

Post by mikegodwin » Mar 24, 2013 7:04 pm

When Veeam does a backup, does it backup the full size of the VMDK, or does it only backup the used space? If it backs up the full VMDK, would backups get a big boost from using thin provisioning in ESXi?

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Full Name: Vladimir Eremin

Re: ESXi Thin Provisioning

Post by veremin » Mar 25, 2013 8:47 am 1 person likes this post

There is special CBT query being used by VB&R during backup that returns only non-zeroed disk blocks, therefore, only used blocks of VMDK are read.

Hope this helps.

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