Another shadow copy creation is already in progress

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Another shadow copy creation is already in progress

Veeam Logoby dcampregher » Fri Feb 17, 2017 2:42 am

Hello,

What is the root cause of this error when backing up the Hyper-VM virtual machines ? There are 52 VM into the JOB and it are hosted on 03 hosts and 09 volumes.

:: Failed to create snapshot (Microsoft CSV Shadow Copy Provider) (mode: Crash consistent) Details: Failed to create VSS snapshot set.
Another shadow copy creation is already in progress. Wait a few moments and try again.
--tr:Failed to perform pre-backup tasks.

:: Retrying snapshot creation attempt (Failed to create VSS snapshot set.
Another shadow copy creation is already in progress. Wait a few moments and try again.
--tr:Failed to perform pre-backup tasks.)

:: Task has been rescheduled
dcampregher
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Re: Another shadow copy creation is already in progress

Veeam Logoby Mike Resseler » Fri Feb 17, 2017 5:29 am 1 person likes this post

Hi Diogo,

Mostly this means that either

a) A backup is still running somewhere and you can't take 2 shadow copy's at the same time
b) A previous backup has failed and there is something not cleaned up

Do you know what VM it is? Is it multiple? Is it a different one each time you backup?

thanks
Mike Resseler
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Re: Another shadow copy creation is already in progress

Veeam Logoby dcampregher » Wed Feb 22, 2017 1:57 am

You are correct. The Microsoft DPM was enabled in the environment, after disable it the warning doesn't appear anymore.
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Re: Another shadow copy creation is already in progress

Veeam Logoby Mike Resseler » Wed Feb 22, 2017 7:26 am

Good to hear it is fixed! Thanks Diogo for letting us know
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[MERGED] Nimble snapshot warnings

Veeam Logoby leo.white » Fri Jun 30, 2017 10:14 pm

I am using the off host proxy method to try and pull snapshots off my nimble array for my backups. My issue is about half the VMs in my jobs fail to use the hardware VSS provider and fall back to the Microsoft VSS writer. Which always shows the job in a warning state. I have 21 vms in this specific job and the majority of them are on my nimble array. Is there anyway to have wait to retry the hardware provider?

Code: Select all
6/30/2017 4:58:16 PM :: Failed to create snapshot Nimble Storage VSS Provider on Hyper-V Off-Host Backup Proxy (mode: Crash consistent) Details: Failed to prepare for backup
Another shadow copy creation is already in progress. Wait a few moments and try again.
--tr:Failed to create VSS snapshot.
--tr:Failed to perform pre-backup tasks. 

Code: Select all
6/30/2017 4:58:28 PM :: Retrying snapshot creation attempt (Failed to prepare for backup
Another shadow copy creation is already in progress. Wait a few moments and try again.
--tr:Failed to create VSS snapshot.
--tr:Failed to perform pre-backup tasks.) 


Enviroment:
2012R2 Clustered servers
Nimble 5000 all flash array
10gbe networking
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Re: Another shadow copy creation is already in progress

Veeam Logoby PTide » Tue Jul 04, 2017 9:45 pm

Hi Leo,

Please see Mike's response and check if anything from the list applies. If not then please open a support case and post your case ID.

Thank you
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