TACL Reference Manual

Built-In Functions and Variables
HP NonStop TACL Reference Manual—429513-018
9-34
#BACKUPCPU Built-In Function
#BACKUPCPU Built-In Function
Use #BACKUPCPU to start a backup process for the current TACL process or delete
an existing backup process.
cpu
specifies the number, in the range 0 to 15, of the CPU to be used for the
backup. If you omit it, TACL runs without a backup.
Result
#BACKUPCPU returns nothing.
Considerations
•
#BACKUPCPU with no CPU specification has no effect if the current TACL
process has no backup. If there is a backup, TACL deletes it.
•
Your TACL must be a named process to have a backup.
•
The specified CPU module must exist on your system.
•
The backup CPU cannot be the same as the primary CPU of your TACL.
•
The backup CPU need not be running at the time that #BACKUPCPU is issued.
•
If you specify a CPU for a backup process and a backup process already exists in
any CPU, an error message appears.
•
TACL switches to the backup process if the primary CPU becomes unavailable.
After the primary CPU is reloaded, TACL switches back to the primary CPU unless
a user is logged on, in which case TACL postpones switching until the user logs
off.
•
To force TACL to switch to the backup process, see the #SWITCH Built-In
Function on page 9-397.
•
For examples, see the BACKUPCPU Command on page 8-28.
#BACKUPCPU [ cpu ]