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FAS9500 multiple disk shelf missing during ONTAP upgrade

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • FAS9500
  • DS224C

Issue

  • During ONTAP ANDU upgrade node1 in HA pair panic reboot with following in takeover mode.

Panic:WAFL hung for aggr01. in SK process wafl_exempt12 on release 9.13.1P4 (C)

  • After node1 reboots the Giveback operation to node2 fails and  ANDU pauses.

::> storage failover show
                              Takeover
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
node2          node1            -      Waiting for giveback
node1          node2          false    Normal giveback not possible:
                                       partner missing file system disks

  • SYSCONFIG -A show node1 and node2 missing shelf from all storage path however sas port remain UP.

    slot 9: SAS Host Adapter 9a (PMC-Sierra PM8072 rev. C, SAS, <UP>)
        Phy State:          [12] Enabled, 6.0 Gb/s>>>>>>degraded Phy
                            [13] Enabled, 12.0 Gb/s
                            [14] Enabled, 12.0 Gb/s
                            [15] Enabled, 12.0 Gb/s
        Mini-SAS HD Vendor:        Amphenol        
        Mini-SAS HD Part Number:   112-00454+A0
                                                  
    slot 9: SAS Host Adapter 9d (PMC-Sierra PM8072 rev. C, SAS, <UP>)
        Phy State:          [12] Enabled, 6.0 Gb/s>>>>>>degraded Phy
                            [13] Enabled, 12.0 Gb/s
                            [14] Enabled, 12.0 Gb/s
                            [15] Enabled, 12.0 Gb/s
        Mini-SAS HD Vendor:        Amphenol        
        Mini-SAS HD Part Number:   112-00454+A0 

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