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

Considerations for START DISK and Virtual Disks
• The disk specified must have a configuration record and a definition with the SMF master
process (as verified by the INFO and STATUS commands).
• TMF must be running on the system.
• These items must be started:
The SMF master process ($ZSMS)◦
◦ The CATALOGLOCATION volume for the MON process (must also be enabled by TMF)
◦ The storage pool process specified by the POOL attribute
◦ The CATALOGLOCATION volume of the storage pool process (must also be enabled by
TMF)
◦ The ANTLOCATION and PENDOPSLOCATION volumes for the virtual disk (must also
be enabled by TMF and configured to be in a storage pool)
Example
1. Start the virtual disk process:
-> START $VDISK00
2. Verify the status of the started disk:
-> STATUS $VDISK00
Resetting a Virtual Disk
The “RESET DISK Command” (page 271) puts a virtual disk into the STOPPED state, substate DOWN,
ready to be started.
Check the current status of the disk:
-> STATUS $VDISK00
1. If the disk is in the HARDDOWN state or SERVICING state, substate SPECIAL:
-> RESET $VDISK00
2. Start the disk:
-> START $VDISK00
3. Confirm that the disk is started:
-> STATUS $VDISK00
Stopping a Virtual Disk
The “STOP DISK Command” (page 290) stops access to a virtual disk. Although you can use ABORT
DISK for virtual disks, the command that is actually executed is the STOP DISK command. When
the STOP DISK command finishes, the disk is left in a STOPPED state, substate DOWN and remains
configured in the system configuration database.
Example
1. Check the state of the disk:
-> STATUS $VDISK00
2. Stop the disk:
-> STOP $VDISK00
3. Confirm that the disk is in the STOPPED state, substate DOWN:
-> STATUS $VDISK00
Managing a Virtual Disk 151