VCSA Backip failed - VDDK version too low

Hi @Philipp !

What’s your current Commvault version ?

Then check through this link for the VDDK / VCenter server version VS Commvault

https://documentation.commvault.com/commvault/v11/article?p=3368.htm

If your VCenter is in v7, are the ESXs hosts also in the same version, or stil in older version? 

HI Philipp,

Also, check on the VSA Proxy(ies) you do not have the below registry key configured at a lower version:

Best Regards,

Seb

Hi Seb,

thanks - i checked that - it was not Enabled but i removed that key right now.

Also i disabled the last key in this picture regarding the vStorageTransportMode.

Best regards
Philipp

now:

Hi @Laurent 

If your VCenter is in v7, are the ESXs hosts also in the same version, or stil in older version? 
→ All ESXi Hosts are 6.5 latested version

Commvault should auto-select the correct version of VDDK depending on the vCenter version you are connecting to. Does the VSA proxy have the correct feature release version on it? almost sounds like it was an older install which has not been patched.

Also, check the registry of the client itself, just in case some legacy / manually input keys are still around.

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\CommVault Systems\Galaxy\Instance001\VirtualServer

Excellent.