Aggregate degraded even after new disk installed and manually assigned to node

Last updated

Mar 30, 2024
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Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: CORE

Last Updated:: 3/30/2024, 2:28:58 AM

Applies to

ONTAP 9
Advanced Disk Partitioning (ADP)

Issue

Aggregate in degraded, double degraded or triple degraded status but not offline.

One or more unassigned disks were manually assigned to the node. The disk(s) were successfully assigned, but the aggregate is not reconstructing.

Example:

cluster::> aggr show-status

Owner Node: aff200-rtp-3a
 Aggregate: aggr1 (online, raid_dp, degraded) (block checksums)
  Plex: /aggr1/plex0 (online, normal, active, pool0)
   RAID Group /aggr1/plex0/rg0 (degraded, block checksums)
                                                              Usable Physical
     Position Disk                        Pool Type     RPM     Size     Size Status
     -------- --------------------------- ---- ----- ------ -------- -------- ----------
     shared   FAILED                       -   -          -  375.2GB       0B (failed)
     shared   1.0.2                        0   SSD        -  375.2GB  894.3GB (normal)
     shared   1.0.4                        0   SSD        -  375.2GB  894.3GB (normal)
     shared   1.0.6                        0   SSD        -  375.2GB  894.3GB (normal)
     shared   1.0.8                        0   SSD        -  375.2GB  894.3GB (normal)
15 entries were displayed.

cluster::> run -node <node> sysconfig -r

Aggregate aggr1 (offline, raid_dp, degraded, fast zeroed) (block checksums)
  Plex /aggr1/plex0 (online, normal, active, pool0)
    RAID group /aggr1/plex0/rg0 (degraded, block checksums)      
    
      RAID Disk Device          HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      --------- ------          ------------- ---- ---- ---- ----- --------------    --------------
      dparity   FAILED                  N/A                        384159/ -
      parity    0b.00.2P1       0b    0   2   SA:A   0   SSD   N/A 384159/786758144  384167/786774528 (fast zeroed)
      data      0b.00.4P1       0b    0   4   SA:A   0   SSD   N/A 384159/786758144  384167/786774528 (fast zeroed)
      data      0b.00.6P1       0b    0   6   SA:A   0   SSD   N/A 384159/786758144  384167/786774528 (fast zeroed)
      data      0b.00.8P1       0b    0   8   SA:A   0   SSD   N/A 384159/786758144  384167/786774528 (fast zeroed)