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NS224 DISK REDUNDANCY FAILED ERROR after disk replacement with no missing drives

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Category:
disk-shelves
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hw
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Applies to

  • NS224 shelf running fw. 2.10
  • Disk replacement after failure

Issue

  • Disk failed and replaced
  • After disk replacement, AutoSupport send messages with:
[...: dsa_disc: callhome.dsk.redun.fault:debug]: Call home for DISK REDUNDANCY FAILED
  • NSM100 module issue reported but cleared
[node_name-01: mgwd: callhome.hm.alert.major:debug]: Call home for Health Monitor process schm: NoPathFromSwitchToNSM_Alert[1.1:A].
 
Alert ID           NoPathFromSwitchToNSM_Alert
Description        Storage shelf 1.1 module A is not connected to storage switches.
Corrective Actions Connect shelf 1.1 module A to two storage switches, following the guide applicable to your shelf.
Possible Effect    Access to shelf 1.1 can be lost with a single shelf module failure.
 
[node_name-01: schmd: hm.alert.cleared:debug]: Alert Id = NoPathFromSwitchToNSM_Alert , Alerting Resource = 1.2:A cleared by monitor system-connect
  • System storage transition from Quad-Path to Mixed-Path HA
[node_name-01: shelf.config.tomixedha:notice]: System has transitioned to a mixture of single, multi-path or quad-path storage configurations.

[node_name-02: shelf.config.tomixedha:notice]: System has transitioned to a mixture of single, multi-path or quad-path storage configurations.

  • Replaced disk is not reporting the paths/connections through the other NSM100 module.
    • Discovered paths
node_name-02:e4b.01.1.5
node_name-02:e4a.01.0.5
node_name-01:e4b.01.1.5
node_name-01:e4a.01.0.5
    • Missing paths:
node_name-01:e4a.01.2.5
node_name-01:e4b.01.3.5
node_name-02:e4b.01.3.5
node_name-02:e4a.01.2.5
  • No erros found in any shelf component, including disks.
  • The issue remains after the disk replacement / re-seat
  • The issue remains after the NSM100 A module re-seat
  • The issue remains after both NSM100 modules 'soft reboot'

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