SCF Reference Manual for the Storage Subsystem (G06.27+, H06.04+)

Managing Magnetic Disks
SCF Reference Manual for the Storage Subsystem—529937-008
7-11
Resetting a Magnetic Disk
3. Confirm that the disk is in the STOPPED state, substate HARDDOWN:
-> STATUS $AUDIT-*
Resetting a Magnetic Disk
The RESET DISK Command (page 14-104) puts a disk into the STOPPED state,
substate DOWN, ready for restarting.
•
Use the RESET command to prepare a device to be started if:
°
A disk is in the STOPPED state, substate HARDDOWN.
°
A hardware error has occurred.
°
You stopped the disk with an ABORT command.
°
The disk was stopped for service.
°
A STOP or ABORT command fails to put the device into the STOPPED state,
substate DOWN.
See Resetting One Magnetic Disk on page 7-12.
•
You can reset and start more than one disk at a time:
°
After installing or replacing a component like a disk, SEB, MSEB, PMF CRU,
IOMF CRU, or ServerNet/DA.
°
After repairing a fabric failure
When a fabric fails, the storage subsystem automatically switches the disk
paths, if possible, so that the disks remains operational.
After repairing a fabric failure, failed disk paths are not automatically restarted.
They remain HARDDOWN until you restart the disk process. The storage
subsystem never attempts to use the failed path, which creates a potential
single point of failure.
See Resetting a Group of Magnetic Disks on page 7-13.
STORAGE - Status DISK \COMM.$AUDIT-*
LDev Path Status State Substate Primary Backup
PID PID
395 PRIMARY INACTIVE STOPPED HARDDOWN 2,266 3,279
395 BACKUP INACTIVE STOPPED HARDDOWN 2,266 3,279
395 MIRROR INACTIVE STOPPED HARDDOWN 2,266 3,279
395 MIRROR-BACKUP INACTIVE STOPPED HARDDOWN 2,266 3,279