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Power Outage caused multi disk panic with one or more shelves missing

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metrocluster
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Applies to

  • MetroCluster
  • ONTAP 9

Issue

  • All paths to disks were lost, which led to a node panic:

Wed Jan 22 09:05:02 +0100 [NodeA2: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 1c.
Wed Jan 22 09:05:02 +0100 [NodeA2: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 1a.
Wed Jan 22 09:05:02 +0100 [NodeA2: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 1b.
Wed Jan 22 09:05:02 +0100 [NodeA2: isp2400_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 1d

  • nvmm.mirror.aborting:debug Seen on all nodes
  • Panic message:

Panic_Message: aggr aggr0_NodeA_02: raid volfsm, fatal multi-disk error..  Raid type - raid4, mirrored Group name plex0/rg0 state NORMAL. 3 disks failed in the group. Dis
Backtrace: sk_save_stackframes:kmod_dumper:dumpcore_on_dumpstack:doadump:kern_reboot:vpanic:panic:sk_panic:fmdisk_disk_failure:vol_process_mdp:vol_mdp_dump_core:volfsm_child_failed:raidfsm_precommit:raidfsm_precommit:mirrorobj_state_notify:raidfsm_precommit:plexobj_state_notify:raidfsm_precommit:groupobj_replace:groupobj_state_notify:raidfsm_precommit:config_disk_fail_obj:config_disk_fail_obj:config_disk_fail_obj:config_disk_fail_obj:config_disk_fail_reply:config_async_reply:config_thread:fork_exit:fork_trampoline_sk
OS Version (formatted): 9.13.1P10

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