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Shelf fault due to internal SAS cluster port failure

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Applies to

  • FAS2720
  • Systems have internal enclosures only，no external shelves are attached.

Issue

  • The controller of Node A was previously replaced due to a failure.
  • Ports 0b on Node A and 0a on Node B have disabled PHY states.
    • Node A: 0b ports [4][5][6] disabled

    slot 0: SAS Host Adapter 0b (PMC-Sierra PM8070 rev. C, SAS, )
        Firmware rev: 03.08.09.00
        Base WWN:           5:XXXXXX:00XXXX5:34
        Temperature:        Not Available
        Phy State:          [4] Disabled
                            [5] Disabled
                            [6] Disabled
                            [7] Enabled, 12.0 Gb/s

    • Node B: 0a ports [0][1][2] disabled

    slot 0: SAS Host Adapter 0a (PMC-Sierra PM8070 rev. C, SAS, )
        Firmware rev: 03.08.09.00
        Base WWN:           5:XXXXXX:00XXXX9:b0
        Temperature:        Not Available
        Phy State:          [0] Disabled
                            [1] Disabled
                            [2] Disabled
                            [3] Enabled, 12.0 Gb/s

  • Node B cannot see Node A's onboard IOM, resulting in DISK REDUNDANCY FAILED notification.

 [?]  Fri Jun 20 08:54:55 +0900 [Node B: dsa_disc: shelf.config.tospha:info]: System has transitioned to single path HA attached storage
 [?]  Fri Jun 20 08:54:55 +0900 [Node B: dsa_disc: callhome.dsk.redun.fault:error]: Call home for DISK REDUNDANCY FAILED

 

  • sysconfig -a on Node B no longer displays IOM12E firmware

Shelf 0: DS212-12  Firmware rev. IOM12E A:           IOM12E B: 0230

  • Node A shows Multi-Path HA, but Node B shows Single-Path HA, as it cannot see 0a path disks

 

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