Errors:
Mon Sep 7 21:54:19 CDT [aaaaaaaaaaa:raid.assim.disk.nolabe ls:error]: Disk 11c.28.9 Shelf 28 Bay 9 [NETAPP X422_SLTNG600A10 NA02] S/N [S0M1XFGM] has no valid labels. It will be taken out of service to prevent possible data loss.
Mon Sep 7 21:54:19 CDT [ aaaaaaaaaaa :raid.config.disk.bad.label:error]: Disk11c.28.9 Shelf 28 Bay 9 [NETAPP X422_SLTNG600A10 NA02] S/N [S0M1XFGM] has bad label.
Mon Sep 7 21:54:19 CDT [ aaaaaaaaaaa :callhome.dsk.label:CRITICAL]: Call home for DISK BAD LABEL
Mon Sep 7 21:55:00 CDT [ aaaaaaaaaaa :monitor.globalStatus.nonCritical:warning]: Disk on adapter 11c, shelf 28, bay 9, bad label.
Solution:
Use the following command:
priv set advanced
disk unfail -s <disk_name>
If above does not work the disk needs to be replaced!!