• This topic has 6 replies, 2 voices, and was last updated February 18, 2021 by Danny M.

Disk inaccessible error with DRS on

  • Danny M
    February 3, 2021 08:30:18 AM

    While DRS is on, the machine changes places many times during the day. Sometimes I get the error xxx.vmdk cannot be synced because it is inaccessible. The problem is solving when I manually move the virtual machine to the other host. There is no IO error on the side of VMware.

    Kalsang D
    February 3, 2021 10:24:59 PM

    Hi Osman,

    This is Kalsang from Zerto.
    VMware DRS enables balancing computing workloads with available resources in a cluster.
    DRS is automatically disabled by Zerto while updating recovered virtual machines in the recovery site from the journal for these recovered virtual machines. After the promotion of the data from the journal to the recovered virtual machine completes, DRS is automatically re-enabled.
    If DRS is disabled for the site, VMware removes all resource pools in the site. If the recovery was defined to a resource pool, recovery will be to any one of the hosts in the recovery site with a VRA installed on it.
    Best regards,

    Danny M
    February 4, 2021 11:15:12 AM

    Hi Kalsang,

    I may have told you wrong.DRS is only open on the production side. This is completely random. For example, the virtual machine replicates 20 times on the other host in a day. But this problem happens 1 time (I get the error xxx.vmdk cannot be synced because it is inaccessible) .

     

    Kalsang D
    February 4, 2021 06:37:59 PM

    Is there any 3rd party backups running in your environment by any chance?

    Best regards,

    Danny M
    February 4, 2021 07:18:58 PM

    Yes there is.But backup does not work when this error is received.

    Kalsang D
    February 4, 2021 07:46:08 PM

    As I’ve seen in another environment where they have backups running and after the backup completes and re-attach the drives back and since the UUID gets changed after the detaching the drive. The ZVM doesn’t see the old UUID and that’s causing the error xxx.vmdk cannot be synced because it is inaccessible.

    Danny M
    February 18, 2021 12:54:54 PM

    I guess that’s the problem 🙂

    https://www.zerto.com/myzerto/knowledge-base/ftn-20210201-zerto-driver-io-inconsistency-on-esxi-7-0-and-7-0-update-1/

     

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