HP Process Resource Manager (PRM) manual Disabling PRM, Resetting PRM, Monitoring PRM groups

Disabling PRM

Disabling PRM does not change the PRM configuration—it only returns control to standard HP-UX resource management. In other words, processes are still assigned a PRMID, but only the standard HP-UX resource management determines what resources processes receive. Having PRM configured but disabled allows you to track resource use by PRM group through prmanalyze, GlancePlus, or acctcom without having PRM actually control the use of these resources.

Disabling PRM differs from resetting PRM in that:

•PRM daemons remain running

•Processes are tagged with the PRMIDs of their associated groups

To disable PRM on the command line and return to standard HP-UX resource management, see the following section. You can also disable PRM in the PRM interface in HP System Management Homepage or in HP Systems Insight Manager.

Disabling PRM with prmconfig

Disable PRM manually by entering the following command:

#prmconfig -d

Each resource manager can be disabled independently using the -doption followed by APPL, CPU, or MEM.

Resetting PRM

When you reset PRM, it returns to its initial state. This is the state PRM is in after it is installed and after the system is booted. Only the standard HP-UX resource management is in effect.

Reset PRM:

•Before shutting your system down (this saves a backup copy of your current configuration).

•Before installing a new version of PRM

•If PRM daemons crash or are killed

•If memory locks or internal shared memory structures fail

Resetting PRM differs from disabling PRM in that:

•PRM daemons are stopped

•Processes are no longer tagged with the PRMIDs of their associated groups

To reset PRM on the command line, erasing your current configuration and disabling PRM, see the following section. You can also reset PRM in the PRM interface in HP System Management Homepage or in HP Systems Insight Manager.

Resetting PRM with prmconfig

Reset and stop PRM manually by entering the following command:

#prmconfig -r

Monitoring PRM groups

To monitor and verify your PRM configuration, use the prmanalyze, prmconfig, prmlist, prmmonitor, id, acctcom, or ps commands or the GlancePlus product.

Sample prmmonitor output is shown below:

Tue	Mar 21 14:36:42 2000	Sample: 5 seconds
CPU	scheduler state: Enabled

CPU CPU

Disabling PRM 93