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Websterm
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VSAN and Surebackup

Post by Websterm » Dec 04, 2017 11:26 am

Hi,

I saw the post about VSAN compatibility (https://www.veeam.com/blog/how-to-avoid ... ssues.html)

I have this problem right now but i only have VSAN at the moment and the Veeam server is physical. Because of that i cannot change virtual lab to a non-vsan datastore, so i have some questions.

1. If i understood right i cannot use surebackup with VSAN if VM's are bigger than 2TB, because disks are in NFS (surebackup) and redo logs are in VSAN?
2. That's true for everyone that runs only VSAN and Veeam Surebackup?
3. There is another way to make it work or VMware have to change VSAN to support SESPARSE?
4. Didn't test yet but i think i will not have this problem with Instant Recovery because i have the option to "Redirect virtual disk updates" as an option right?

Thanks

P.Tide
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Re: VSAN and Surebackup

Post by P.Tide » Dec 05, 2017 3:27 pm

Hi,

1. Disk larger than 2 TB presented from NFS/VMFS storage requires snapshot to be created in SeSparse format. Since it's SureBackup, the snapshot will be placed on vSAN datastore, but vSAN does not support SeSparse logs.
2. Instant Recovery is also affected. As mentioned in the article, in some cases even hot-add mode will not work.
3. As a workaround you might try to present iSCSI target from your VBR server to ESXi host and use it as a non-vsan datastore.
4. Since you don't have any datastores other than vSAN the only option would be to let redo logs stay at vPower NFS server (VBR server in your case)

Thanks

Websterm
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Re: VSAN and Surebackup

Post by Websterm » Dec 11, 2017 12:15 pm

The idea of present a iSCSI target will help

Thank you

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