Backup of Exchange VM failed

Last post 05-28-2020, 12:29 PM by Liam. 2 replies.
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  • Backup of Exchange VM failed
    Posted: 04-30-2020, 3:24 PM

    Until a few days ago, the backup of the VM of our Exchange server was flawless. But recently,
    the backup failed with the following message:
    Error Code: [91:155]
    Description: The system or provider has insufficient storage space. If possible delete any old or unnecessary persistent shadow copies and try again.
    Source: unicwbsvcl03, Process: vsbkp
    We increased the size of the Exchange disk from 2.6TB to 3TB and made a Full backup that ended 
    without errors.

    On this last dawn, however, there was a failure with the following message:
    Error Code: [91:113]
    Description: Unable to read the disk [\\?\GLOBALROOT\Device\CSV{69170e0c-ff8e-4347-9552-baf35303ec89}\UNICWBSV215\VIRTUAL HARD DISKS\UNICWBSV215_D.vhdx] for virtual machine [UNICWBSV215] on Host [UNICWBSVCL03]. [Invalid argument (ErrNo.22)]
    Source: unicwbsvcl03, Process: vsbkp

    Both times, as a consequence, the Exchange server crashed forcing our colleagues from windows
    support to work for about 2 hours to recover the email service.

    Now, we disable the backup until we have understood and fixed the problem.

    CommCell: Version 10 build 116
    Client: Windows Server 2016 Datacenter version10 SP14 +

    Does anyone have any idea how to deal with this failure?
  • Re: Backup of Exchange VM failed
    Posted: 05-02-2020, 8:05 AM

    Check if the datastore has less than 10% free, this is the default (tunable) free space required on the datastore.

  • Re: Backup of Exchange VM failed
    Posted: 05-28-2020, 12:29 PM
    • Aplynx is not online. Last active: 07-08-2020, 11:17 AM Liam
    • Top 10 Contributor
    • Joined on 05-04-2010
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    Space issue certainly sounds like the right path to investigate since the enviroment is crashing.

    I'd also suggest moving past v10 since official support was dropped 12/15/17

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