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Brandon7a
Contributor
Contributor
‎12-21-2010 01:23 PM

Time it takes to complete a VCB

If I have a VM with total disk size of 200 GB, will the VCB take shorter time to backup if there isn't a lot of data on the disk? Or does it go by total size of the disk and not total data?

Thanks

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vmroyale
Immortal
Immortal
‎12-21-2010 06:40 PM

Hello.

Total data, including data that has been deleted.  Check out http://www.yellow-bricks.com/2009/07/31/storage-vmotion-and-moving-to-a-thin-provisioned-disk/ for an explanation of how this will work, and how you can keep the sizes to a minimum.

Good Luck!

Brian Atkinson | vExpert | VMTN Moderator | Author of "VCP5-DCV VMware Certified Professional-Data Center Virtualization on vSphere 5.5 Study Guide: VCP-550" | @vmroyale | http://vmroyale.com
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idle-jam
Immortal
Immortal
‎12-21-2010 06:51 PM

the whitespace is being removed and then only the used space is being backup. it's pretty fast if you're on FC 4Gbps, i'm getting like 1-3 GB per minute - of course the mileage varies.

for more info, please do refer to : http://www.vmware.com/pdf/vi3_consolidated_backup.pdf

VCB has being depreciated in vSphere 4.1. It has being replaced by VMware vStorage APIs for Data Protection (VADP) @ http://kb.vmware.com/kb/1021175

Also do look into VMware Data Recovery it might come with your version. @ http://www.petri.co.il/vmware-data-recovery-backup-and-restore.htm

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