Disk Drive Errors and Failure Recovery

Disk Drives: Diagnosing a HARDDOWN Substate

If a Disk Drive Is HARDDOWN During... Diagnostic Action

Installation of an internal disk drive Use the SCF STATUS DISK command to

check the states of the disk paths.

Installation of a PMF CRU Use the SCF STATUS DISK command to

check the disk path states for each disk

configured to use the PMF CRU along with the

disk path states for each IOMF CRU and

ServerNet/DA associated with this PMF CRU.

Installation of an IOMF CRU Use the SCF STATUS DISK command to

check the disk path states for each disk

configured to use the SAC on the IOMF CRU

and for the disks configured to use the

ServerNet/DA associated with the IOMF CRU.

Installation of an SEB Use the SCF STATUS DISK command to

check the disk path states for each IOMF CRU

and ServerNet/DA associated with the SEB.