User's Manual
Table Of Contents
- HP Process Resource Manager User Guide
- Contents
- Preface
- 1 Overview
- 2 Understanding how PRM manages resources
- 3 PRM configuration planning
- 4 Setting up PRM
- 5 Using PRM with HP System Management Homepage (SMH)
- 6 Using PRM with HP Systems Insight Manager (SIM)
- 7 Configuring and enabling PRM on the command line
- Quick start to using PRM’s command-line interface
- Configuring PRM
- The PRM configuration file
- Configuration tips and requirements
- Specifying PRM groups/controlling CPU resource use
- Controlling memory use
- Controlling applications
- Specifying PRM users
- Assigning secure compartments to PRM groups
- Assigning Unix groups to PRM groups
- Checking the configuration file
- Loading the PRM configuration
- Enabling resource managers
- Updating the configuration
- 8 Fine-tuning your PRM configuration
- 9 Administering PRM
- Moving processes between PRM groups
- Displaying application filename matches
- Displaying netgroup expansions
- Displaying accessible PRM groups
- Displaying state and configuration information
- Displaying application and configuration information
- Setting the memory manager’s polling interval
- Setting the application manager’s polling interval
- Disabling PRM
- Resetting PRM
- Monitoring PRM groups
- Logging PRM memory messages
- Logging PRM application messages
- Displaying groups’ allocated and used resources
- Displaying user information
- Displaying available memory to determine number of shares
- Displaying number of cores to determine number of shares
- Displaying past process information
- Displaying current process information
- Monitoring PRM with GlancePlus
- Monitoring PRM with OpenView Performance Agent (OVPA) / OpenView Performance Manager (OVPM)
- Automating PRM administration with scripts
- Protecting the PRM configuration from reboots
- Reconstructing a configuration file
- Special case of interest: Client/server connections
- Online cell operations
- Backing up PRM files
- A Command reference
- B HP-UX command/system call support
- C Monitoring PRM through SNMP
- D Creating Secure Resource Partitions
- E Using PRM with Serviceguard
- F Using PRM with HP Integrity Virtual Machines
- G PRM error messages
- Glossary
- Index
User records specify PRM users and the groups they can access.
Use the following syntax when specifying a user record:
USER::::INITIALGROUP[,ALTERNATEGROUP[, ...]]
where
USER Is one of the following:
• A user’s login name
This name must correspond to the user’s name in password files that
can be accessed by the C function getpwnam, such as /etc/passwd.
If you assign processes that would typically run in PRM_SYS to another
group, be sure that group has sufficient resources. (For example, if
you are using memory records, be sure the group gets enough
memory.) Take particular care when creating user records for root as
such records will move essential system processes, such as inetd.
• +netgroup_name
netgroup_name must correspond to a list of login names in
/etc/netgroup. When a configuration is loaded, any user in
netgroup_name who does not have an explicit user record assumes
the INITIALGROUP and any ALTERNATEGROUPs of this record.
If a user who does not have an explicit user record is in multiple
netgroups, each with its own user record, the INITIALGROUP of the
first matching record (based on an ASCII dictionary sort) becomes the
user’s initial PRM group. All other groups become alternate groups.
If a user has an explicit user record and is in one or more netgroups
that have user records, the explicit record takes precedence.
PRM ignores any line in /etc/netgroup that has an empty user field.
NOTE: PRM only checks netgroup definitions when a configuration
is loaded. If you change your netgroup definitions, reload your
configuration so PRM is aware of the new definitions.
For an example of how netgroups affect PRM group assignments, see
“Displaying netgroup expansions ” (page 90).
INITIALGROUP Is the name of the initial PRM group for the user or netgroup. This is the
group the login program chooses when launching the user’s login shell.
Also, it is the group that cron chooses when scheduling jobs for the user.
ALTERNATEGROUP Is the name of one of the alternate PRM groups for the user or netgroup.
Alternate groups are groups other than the initial group that the user or
netgroup members are allowed to run processes in. The user or netgroup
members can start a process in an alternate group using prmrun or can
move an existing process to an alternate group using prmmove.Alternate
groups are not meaningful for root users because they have access to all
PRM groups.
72 Configuring and enabling PRM on the command line