TACL Reference Manual

UTILS:TACL Commands and Functions
HP NonStop TACL Reference Manual—429513-018
8-29
BACKUPCPU Command
•
When a backup TACL process takes over, an initial logon state is established. All
variables, ASSIGNs, PARAMs, and DEFINEs are reset, and the TACLLOCL file
and your TACLCSTM file are invoked. The history buffer index is set to 1.
•
If an error occurs while TACL is trying to create the backup process or if the
backup CPU is down, TACL waits 3 minutes before trying to create the backup.
Examples
1. Suppose that you are running a TACL process named $CMT1 (the name displayed
by the WHO and PPD commands). When you enter the STATUS *, TERM
command, you see that $CMT1 does not have a backup process:
$E197 10,122 150 001 8,1 $SYSTEM.SYSTEM.TACL $FURD
You start a backup TACL process in CPU 11 by entering:
12> BACKUPCPU 11
TACL displays this response after creating the backup process:
BACKUP PROCESS CREATED IN CPU 11
Entering “STATUS *, TERM” now displays this information:
$E197 10,122 150 001 8,1 $SYSTEM.SYSTEM.TACL $FURD
$E197 B 11,122 150 R 000 8,1 $SYSTEM.SYSTEM.TACL $FURD
This display shows that the primary TACL process (running in processor 10, with
process number 122) now has a backup TACL process (running in processor 11,
with process number 122). Both the primary and backup processes have a priority
of 150. See the STATUS Command on page 8-207 for explanations of the other
categories in the STATUS display.
2. To delete this newly created backup process, enter:
14> BACKUPCPU
15>
which TACL acknowledges with:
STOPPED: 11,122
BACKUP PROCESS DELETED
3. To move your backup process from one CPU to another, enter:
15>BACKUPCPU
STOPPED: 11,111
BACKUP PROCESS DELETED
16>BACKUPCPU 12
BACKUP PROCESS CREATED IN CPU 12
17>