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Why does the snapshot process hang my VM's

Good Morning All,

 

Thanks for taking the time to look!

 

I have an issue with numerous virtual servers on our server estate.

 

When VEEAM backs-up the server it takes a snapshot, when the back-up is complete it removes the snapshot, this then causes the server to hang and loose connectivity for anywhere up to 1 hour, thus causing an outage to end users.

 

I have approached VEEAM and they advised this was HA monitoring, I have disabled this but still the issue occurs.

 

I have also disabled CBT (Change Block Tracking) in the VEEAM back-up job which requires that all snapshots be removed, the same thing happens.

 

The odd thing is, this does not occur on every single back-up, almost on a monthly basis.

 

Any feedback or input would be greatly appreciated.


Thanks,

 

San


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