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How ONTAP add disk to the SyncMirror Aggregate

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ontap-9
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Applies to

  • ONTAP 9
  • SyncMirror

Answer

ONTAP  add half of the disk to the original raid group and the other half is going to be added to mirrored raid group.

Example:

::> storage aggregate add-disks -aggregate aggr1 -diskcount 6 -raidgroup rg0

Disks would be added to aggregate "aggr1" on node "node-1" in the following manner:

First Plex

  RAID Group rg0, 8 disks (block checksum, raid_dp)
                                                      Usable Physical
    Position   Disk                      Type           Size     Size
    ---------- ------------------------- ---------- -------- --------
    data       1.11.8                    SAS         836.9GB  838.4GB
    data       1.11.9                    SAS         836.9GB  838.4GB
    data       1.11.10                   SAS         836.9GB  838.4GB

Second Plex

  RAID Group rg0, 3 disks (block checksum, raid_dp)
                                                      Usable Physical
    Position   Disk                      Type           Size     Size
    ---------- ------------------------- ---------- -------- --------
    data       1.21.11                   SAS         836.9GB  838.4GB
    data       1.21.12                   SAS         836.9GB  838.4GB
    data       1.21.13                   SAS         836.9GB  838.4GB

Aggregate capacity available for volume use would be increased by 2.10TB.

Additional Information

The number of disks must be even when adding disks to the syncmirror aggregate.

 

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