Calculating digests like crazy

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Calculating digests like crazy

Veeam Logoby frigomiam » Tue Jul 11, 2017 1:54 pm

Hi,

I had 1 replication job configured with 1 destination ESX in my DR. It was working ok.
I did a manual migration of a VM to another datastore. Then the job started to fail as it couldn't find the vmref.
I realize it was because the job was configured with the ESX not vCenter. That's fine.

I change the job and point it to ESX in vCenter inventory instead, then remap all seeding replicas in the job..

When I start the job, all vm in the job needs requires a Calculating digests abd that's an issue because it's taking ages..

=> Why does it have to calculate digets when the disks and replicas haven't changed ?
=> Was it possible to not fall into this situation ?

Thank you,
frigomiam
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Re: Calculating digests like crazy

Veeam Logoby DGrinev » Tue Jul 11, 2017 4:08 pm

Hi Francois,

frigomiam wrote:Why does it have to calculate digets when the disks and replicas haven't changed ?

Since you've changed management of VMs in the job to vCenter all VMs got new morefIDs, in this case they appear like a new machines (Veeam B&R doesn't know if it is the same VMs).
That's why digest calculation has been started to compare differences between previously used VMs and "new ones".

Managing virtual infrastructure by vCenter is highly recommended approach that would allow you to avoid such situations in the future.
DGrinev
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Re: Calculating digests like crazy

Veeam Logoby frigomiam » Wed Jul 12, 2017 9:45 am

thank you Dmitry, that makes sense
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[MERGED] calculating digests

Veeam Logoby bc2011 » Wed Aug 30, 2017 1:12 pm

Hi there,

I've moved esxi host + nas with existing replicas to remote location (ip change , remove from vcenter, register replicas again)
then install veeam proxy at remote location
configure replica seeding with mapping
and run replication job

but it's taking forever with digest, can we avoid calculating digest in any way (metadata stays on same location on source) ?

thanks
bc2011
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Re: Calculating digests like crazy

Veeam Logoby DGrinev » Wed Aug 30, 2017 3:48 pm

Hi Matjaž,

Since you've changed the management of replicas they recognized as never seen before due to new IDs.
Please read this thread for additional information. Thanks!
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Re: Calculating digests like crazy

Veeam Logoby bc2011 » Thu Aug 31, 2017 11:40 am

Ok thanks. I was suspecting that. Just needed confirmation :D
bc2011
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Re: Calculating digests like crazy

Veeam Logoby bc2011 » Tue Sep 05, 2017 7:35 am

suddenly got this Preparing replica VM Error: The operation has timed out with on job. Google returns nothing, I checked log files on Veeam server but find nothing useful, not sure whether i should open support case or delete replica and start over for this particular job.
bc2011
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Re: Calculating digests like crazy

Veeam Logoby DGrinev » Tue Sep 05, 2017 9:45 am

Hi Matjaž,

I'd recommend you to open the support case and let them take a closer look at the logs.
Also, you can post the case ID number here, so we can track it too. Thanks!
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