SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

Switching the Active Path for a Disk
1. Display the current status of the disk paths:
-> STATUS $D0201-*
STORAGE - Status DISK \WAGER.$D0201-*
LDev Path Status State Substate Primary Backup
PID PID
104 PRIMARY ACTIVE STARTED 2,107 3,35
104 BACKUP INACTIVE STARTED 2,107 3,35
104 MIRROR ACTIVE STARTED 2,107 3,35
104 MIRROR-BACKUP INACTIVE STARTED 2,107 3,35
• The $D0201 disk process is still executing in processor 2.
• The $D0201 disk is now accessed through SACs in the same PMF CRU.
• The disk process is now using the backup path to access the primary disk.
• The mirror path is unaffected by the switch.
• Both paths now use the Y fabric.
• The $D0201 disk process is executing in processor 2.
• The $D0201 disk is accessed through SACs in two different PMF CRUs.
• The disk process is using the primary path to access the primary disk.
• The paths use the X and Y fabrics.
114 Managing Disks