Forum Discussion

Kev_Lamb's avatar
Kev_Lamb
Level 6
9 years ago

VM Snapshot Error

Environment:

NBU 7.7.1 Master
NBU 7.7.1 Media
RHEL 5.6 O/S
VMWare 5.5

Client with error RHEL7 running vm-open-tools

Hi,

I am having an issue with the snapshot backups of a RHEL7 VM client that is running vm-open-tools (VMWare ones not available), the snapshot fails to quiecence the drives, if I run a non quiecence this works fine, the client does have a CIFS mount mapped to it from the OS

Looking in the NBU logs I dont really see that much, well nothing that I can make out, in the client /var/log I see the following: error

 

Jan 21 11:08:11 lonbfbvmwwing4 kernel: CIFS VFS: cifs_mount failed w/return code= -13

Jan 21 11:08:11 lonbfbvmwwing4 vmsvc[710]: [ warning] [vmbackup] Error freezing filesystems.

Jan 21 11:08:24 lonbfbvmwwing4 vmsvc[710]: [ warning] [vmbackup] Error freezing filesystems.

I have looked at the CIFS mount on the client and this looks Ok however it is a HDI mountpoint.

Was wondering if this could be a VSS issue but I am unable to run an advanced install of the vm-open-tools to check if this option is selected, if anyone has any experience with vm-open-tools it would be appreciated.

I am able to take a quiecence backup usning VM directly but not via NetBackup

Any help with the above would be appreciated.

Kev

7.7
Backup and Recovery
Linux
NetBackup
  • Marianne's avatar
    Marianne
    9 years ago
    I believe that no VM-level should be taken of db servers. Unless it is one of the support MS db's. What is the backup strategy with MySql db's? Speak to dba's - NBU supports agent sold by Zmanda. So - rather install NBU client and treat as physical client.
  • Douglas_A's avatar
    Douglas_A
    Level 6
    9 years ago

    HI Kevin, 

    when you perform a snapshot with NBU what is the error from the VC showing as?

  • Kev_Lamb's avatar
    Kev_Lamb
    Level 6
    9 years ago

    Hi Doug,

    In the vSphere client window I get the following error message

    An error occurred while taking a snapshot: msg.snapshot.error-QUIESCINGERROR.

     

    Kev

  • Will_Restore's avatar
    Will_Restore
    Level 6
    9 years ago

    Original log contains what looks like permissions issue

    kernel: CIFS VFS: cifs_mount failed w/return code= -13

    make sure the mount is really valid and accessible

     

  • Dangerous_Dan's avatar
    Dangerous_Dan
    Level 5
    9 years ago

    Hi Kevin,

    Silly question but have you tried running a quiesced snapshot with the CIFS share unmounted?

     

    This certainly does sound more like a VMware issue rather than something that Netbackup is failing to do.

  • Kev_Lamb's avatar
    Kev_Lamb
    Level 6
    9 years ago

    Hi Areznik, just installed the SYMCquiesce but same error.

     

    Hi Will, I am able to access the mount point with out any issues

    Just wondering if it is something to do with the vm-open-tools.....

  • Kev_Lamb's avatar
    Kev_Lamb
    Level 6
    9 years ago

    The plot thickens, just found this in the SYMCquiesce log file

    Build version: SYMCquiesce 1.0.0-003 Tue May 13 17:42:53 IST 2014
    Stats - Thu Jan 21 18:26:02 2016

    Freeze of volume [/mysql-data] returned status [-1]
    Thaw of volume [/mysql-data] returned status [-1]

    Looks like it may be the mysql area

     

    Kev

  • Marianne's avatar
    Marianne
    Level 6
    9 years ago
    I believe that no VM-level should be taken of db servers. Unless it is one of the support MS db's. What is the backup strategy with MySql db's? Speak to dba's - NBU supports agent sold by Zmanda. So - rather install NBU client and treat as physical client.
  • Kev_Lamb's avatar
    Kev_Lamb
    Level 6
    9 years ago

    Thanks Marianne,

    This is a new server for an application being bought into the company, I will speak to the server owners and find out how they will be managing the MySql DB backups.

    I will be moving this over to a standard client rather than a VM policy based backup

    Thanks to everyone who has helped with this issue.

    Kev

  • sdo's avatar
    sdo
    Moderator
    9 years ago

    Apologies Kevin, I don't mean to teach you how to suck eggs... the above is perhaps more for our newer, and perhaps less experienced members, who may stumble across this topic... in how to think "enterprise" backup... after all, this product is named:   NetBackup Enterprise Server.

    And the above behavioural characteristics at the VM layer is probably still true for any backup product... until you get into the realms of advanced storage array integration.