Summary: After you replace a failed hard disk with a disk pulled from a decommissioned GSA, the RAID warning message still shows in the Administration > System Status page (See 7.0 to 7.2 Admin Console mapping for prior page location).
Cause: A hard disk taken from another GSA will not be recognized by the GSA.
Fix: Please contact Google Cloud Support in case of hard disk failure. Use only hard disks authorized by Google Cloud Support.
Additional Information: For more information about diagnosing hard disk failures and replacing a hard disk, see this article.