Spare disks get auto-partitioned when not needed

Last updated

Jan 30, 2024
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Visibility:: Public

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Category:: disk-drives

Specialty:: hw

Last Updated:: 1/30/2024, 8:44:04 AM

Applies to

ONTAP 9
RAID groups with partitioned and not partitioned drives within the same aggregate.

Issue

Partner node is under spare low condition:
- Partner node:
  
  RAID group /aggr1_n1/plex0/rg1 (normal, block checksums)
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity 2a.01.18P1 2a 1 18 SA:A 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed) parity 9b.02.18P1 9b 2 18 SA:B 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed) data 2a.01.6P1 2a 1 6 SA:A 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed) data 9b.02.6P1 9b 2 6 SA:B 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed) ...
  
  Pool0 spare disks
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- Spare disks for block checksum spare 9b.02.22P3 9b 2 22 SA:B 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 9b.02.23P3 9b 2 23 SA:B 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed)
- Local node have one whole spare disk available:
  
  Pool0 spare disks
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- Spare disks for block checksum spare 9b.02.10P3 9b 2 10 SA:A 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 9b.02.11P3 9b 2 11 SA:A 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 2c.11.14 2c 11 14 SA:B 0 SSD N/A 14651040/30005330432 14651290/30005842608 (not zeroed)
Local disk is automatically partitioned although an unpartitioned spare disk is required on local:
- Partner node:
  
  Pool0 spare disks
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- Spare disks for block checksum spare 9b.02.22P3 9b 2 22 SA:B 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 9b.02.23P3 9b 2 23 SA:B 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 2c.11.14P1 2c 11 14 SA:A 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed)
- Local node:
  
  RAID group /aggr1_n2/plex0/rg2 (normal, block checksums)
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity 2c.11.12 2c 11 12 SA:B 0 SSD N/A 14651040/30005330432 14651290/30005842608 (fast zeroed) parity 9d.12.12 9d 12 12 SA:A 0 SSD N/A 14651040/30005330432 14651290/30005842608 (fast zeroed)
  
  Pool0 spare disks
  
  RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- Spare disks for block checksum spare 2c.11.14P3 2c 11 14 SA:B 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 9b.02.10P3 9b 2 10 SA:A 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 9b.02.11P3 9b 2 11 SA:A 0 SSD N/A 61153/125241856 61161/125258240 (fast zeroed) spare 2c.11.14P2 2c 11 14 SA:B 0 SSD N/A 7294921/14939998720 7294929/14940015104 (fast zeroed)
Aggregates or RAID groups with unpartitioned disks don't have spare drives available in local, caused local spare low condition:

[LocalNode: config_thread: raid.rg.spares.low:error]: /aggr1_n2/plex0/rg2