TMF Reference Manual (G06.24+)

TMFCOM Commands
HP NonStop TMF Reference Manual—522418-002
3-84
ALTER PROCESS
•
Stop and reload each processor individually
Even when the CPUS, PRI, SWAP, and PROGRAMFILE attribute values are specified
by the ALTER PROCESS command, they may be overridden by CMON (if it is
running). As a result, the values displayed by the INFO PROCESS command may
differ from the actual attribute values of the process type.
Recommendations for Option Use
The CPUS, PRI, and SWAP options of this command are intended for use by
operators. However, the MAKESAVEABEND, DEBUG, INSPECT, PROGRAMFILE,
TERM, and EXTENDEDSEGSIZE options should be used by TMF experts only; use of
these parameters requires a substantial understanding of lower-level aspects of the
system software.
Returning to Default Configuration Values
After you use the ALTER PROCESS command to change a process-type attribute
value, the process type uses that value until it is changed or reset by another ALTER
PROCESS command. To reset an attribute to its default value for all process types,
use the command:
ALTER PROCESS *,RESET attribute-name
You can also reset an attribute value for a single process type by using the following
command:
ALTER PROCESS process-type, RESET attribute-name
CPU Option Considerations
When you specify a list of processors in the CPU parameter, TMF goes through them
in order of ascending CPU number when starting processes.
When you specify two processors for the catalog process type or the TMP process
type, the first processor is used for the primary process and the second processor is
used for the backup process.
On a given system, when multiple volume recovery processes run concurrently, the
maximum limit is one volume recovery process per processor, for up to eight
processors.
Caution. If you use the second of these approaches, do not stop, at the same time, both
members of any processor pair attached to a critical resource such as the $SYSTEM disk.
Ensure that either the primary or backup processor remains running while you stop and reload
the other member of the pair.
For more information about the effect of altering process attributes, see Stopping and
Restarting TMF Processes on page 3-89.
Note. For the TMFMON and TMFMON2 process types, the CPUS parameter has no effect.