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

Managing Magnetic Disks
SCF Reference Manual for the Storage Subsystem—529937-008
7-15
Controlling Whether $ZRD9 Starts Automatically
After a System Load
To disable automatic sector reallocation:
> STOP $ZRD9
You might want to disable $ZRD9 if you choose to manually spare a sector.
Controlling Whether $ZRD9 Starts Automatically After a System
Load
•
To ensure that $ZRD9 does not start automatically after a system load, do one of
the following:
°
Stop the process and reconfigure it to be started manually:
-> ABORT PROCESS $ZZKRN.#ROUTING-DIST
-> ALTER PROCESS $ZZKRN.#ROUTING-DIST, STARTMODE MANUAL
°
Stop the process and delete it:
-> ABORT PROCESS $ZZKRN.#ROUTING-DIST
-> DELETE PROCESS $ZZKRN.#ROUTING-DIST
•
To reenable $ZRD9 automatic startup after system load:
°
Reverse the ALTER command and start the process:
-> ALTER PROCESS $ZZKRN.#ROUTING DIST, &
-> STARTMODE APPLICATION
-> START PROCESS $ZZKRN.#ROUTING-DIST
°
Reverse the DELETE command and start the process:
-> ADD PROCESS $ZZKRN.#ROUTING-DIST, AUTORESTART 0, &
-> BACKUPCPU 1, DEFAULTVOL $SYSTEM.ZSERVICE, &
-> HIGHPIN ON, HOMETERM $ZHOME, NAME $TSMRD, &
-> PRIMARYCPU 0, PRIORITY 150, &
-> PROGRAM $SYSTEM.SYSTEM.TACL, &
-> INFILE $SYSTEM.ZTSM.INITRD, STARTMODE APPLICATION, &
-> TYPE OTHER, USERID SUPER-ID
-> START PROCESS $ZZKRN.#ROUTING-DIST
Sparing a Sector Manually
If automatic sector reallocation is disabled or if it fails to spare a defective sector
because the error is intermittent, you might have to spare the sector manually.
If you get an error message reporting the address of a bad sector, try to verify that the
message is caused by a disk media error before manually sparing the sector by using
the CONTROL DISK, SPARE command.
Caution. Do not spare sector %H2 or sector %H3 before talking to your service provider.