Oracle ZFS Storage Appliance: Storage Pool Status is Degraded, but No Faulty Disk Found

(Doc ID 2355238.1)

Last updated on FEBRUARY 13, 2018

Applies to:

Oracle ZFS Storage ZS5-4 - Version All Versions and later
Oracle ZFS Storage ZS5-2 - Version All Versions and later
Oracle ZFS Storage ZS3-4 - Version All Versions and later
Oracle ZFS Storage ZS3-2 - Version All Versions and later
Oracle ZFS Storage ZS3-BA - Version All Versions and later
7000 Appliance OS (Fishworks)

Symptoms

Storage pool status is degraded, but no faulty disk found.

There are many drives in "Removed" state in the pool.

Spare was kicked in, however system does not report any drive failure.

 

Changes

 DIMM replacement was performed about a month back.  No other onsite activity was reported.

 

Cause

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