HP-UX Secure Resource Partitions (SRP) A.02.00 Administrator's Guide

Login Access
Configuring an administrative user does not grant that user login access to the compartment. A
user does not have to be logged in to an SRP compartment to start or stop the compartment, or
to modify the configuration data.
To specify the users authorized to log in to the compartment, use the SRP login service or the
authadm command.
The prm Service
The prm Service creates a new PRM group for an SRP compartment. SRP does not allow you to
add an SRP compartment to an existing PRM group. To add an SRP compartment to an existing
PRM group, use the procedure is described in HP Process Resource Manager User's Guide,
“Assigning secure compartments to PRM groups.”
Input Data
SRP prompts for following data. You can also specify a variable name and value in the command
line, as described in “Creating an SRP Compartment or Adding Data to a Compartment” (page 67).
PRM Group Name
Name for the PRM group.
Variable Name: prm_group_name.
Default: The SRP compartment name.
PRM Group Type (FSS or
PSET)
Specifies the type of PRM group. A Fair Share Scheduler
(FSS) PRM group uses a CPU entitlement mechanism that
is specified in shares. An FSS group uses the Fair Share
Scheduler (FSS) in the HP-UX kernel within the system’s
default processor set.
A Processor Set (PSET) PRM group uses a CPU entitlement
mechanism that is specified by assigning a subset of the
system’s cores to the PRM group. (A core is the actual
data-processing engine within a processor. A single
processor might have multiple cores. Processes in a PSET
have equal access to CPU cycles on their assigned cores
through the HP-UX standard scheduler.
Variable Name: prm_group_type.
Default: FSS.
PRM FSS group CPU shares
(Valid for FSS groups only) The number of CPU shares
allocated for this group. PRM determines the actual amount
of CPU utilization allocated for this group by calculating
the number of shares allocated for this group divided by
the total CPU shares allocated.
Variable Name: prm_cpu_shares.
Default: 10.
PRM FSS group CPU cap
(Valid for FSS groups only) The maximum percentage of
CPU utilization available for this group.
Variable Name: prm_cpu_max.
Default: No cap.
PRM FSS group cores
(Valid for PSET groups only) The number of core
processors allocated for this group.
Variable Name: prm_cores.
38 Using the base Template