NDMP restore after NetApp upgrade 7-mode to cluster

Last post 05-09-2019, 6:40 PM by AndyHengst. 4 replies.
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  • NDMP restore after NetApp upgrade 7-mode to cluster
    Posted: 05-08-2019, 8:53 AM

    Backups were made using CV11SP11 or older, from CIFS volume in NetApp 7-mode.

    Now we run CV11SP14, NetApp 9.x (cluster mode).  The NetApp volumes are incompatible (a migration tool was used to convert live volumes to Cluster mode).

    I suspect the only way to get a restore is to build an old 7-mode NetApp device to configure with tape access?

    Backed up volume is 12TB and includes content + snapshots, likely needs to be restored as a whole before we can browse.

    AH

  • Re: NDMP restore after NetApp upgrade 7-mode to cluster
    Posted: 05-09-2019, 3:05 AM

    Hi AndyHengst

    Before making any changes from the CommVault side I would recommend to engage Support and check whether there are any methods to change how CommVault recognizes the change from 7 Mode to Cluster Mode and see if there are any avenue that could be explored

    Regards

    Winston

  • Re: NDMP restore after NetApp upgrade 7-mode to cluster
    Posted: 05-09-2019, 3:14 AM

    Hi AndyHengst

    Before making any changes from the CommVault side I would recommend to engage Support and check whether there are any methods to change how CommVault recognizes the change from 7 Mode to Cluster Mode and see if there are any avenue that could be explored

    Regards

    Winston

  • Re: NDMP restore after NetApp upgrade 7-mode to cluster
    Posted: 05-09-2019, 6:04 PM

    A 7-mode file server likely does not need to be maintained for restores. The 7-mode and C-mode backup formats are compatible. The volume naming is different between 7-mode and C-mode so it will not be possible to do in-place restores, but out-of-place restores will work. For example if you have a 7-mode backup of "/vol/businessoperations" and you want to restore it to C-mode "/businessvserver1/operations" then browse and select "/vol/businessoperations" to be restored, select the destination file server client to be restored to, set the destination path to "/businessvserver1/operations" and set preserve level to 0. A similar procedure can be used to restore subdirectories and individual files.

    As Winston mentioned, you can engage Support and we can look at your specific configuration.

    Thanks,
    Duncan

    PS: Note that if the NDMP backup was done from a backupset which has the "Image Backup Set" option selected, then the 7-mode backup cannot be restored to C-mode. This option is not typically selected - it is used to run a NetApp "smtape" backup which is a block based backup of the file server volume. When this smtape backup is used, only whole volume backups and whole volume restores are possible. And the browse of the backup data will only show the volume itself - the browse will not show the contents of the volume.

  • Re: NDMP restore after NetApp upgrade 7-mode to cluster
    Posted: 05-09-2019, 6:40 PM

    Thank you Duncan!

    Unfortunately yes, we had Image Backup Set selected on the backupset containing that subclient.

    So the short answer is: we must build a 7-mode cluster to recover these volumes.

    THANKS

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