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NS224 missing from system with no activity lights on drives

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Category:
ontap-9
Specialty:
HW
Last Updated:

Applies to

  • ONTAP 9
  • NS224

Issue

  • A power maintenance activity in the DC can result in the below scenarios
    • NS224 shelf missing from system.
    • No activity lights appear on disks on front of shelf.
    • No light appears on shelf id.
    • NSM modules have green LED indicators.
    • PSU modules have green LED indicators.
    • Yellow/amber light can be seen coming from inside the chassis (not on the NSM or PSU modules).
    • Few aggregates state is unknown and their respective volumes in offline state
    • Takeover Giveback of node does not help
    • Shelf does not appear in any of the following commands:

::> storage port show

::> storage shelf sho

::> system node run -node * -command sysconfig -a

::> storage disk show -fields diskpathname

::> event log show -event *shelf*

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