HP Process Resource Manager User's Guide

Configuring and enabling PRM on the command line
Configuring PRM
Chapter 7124
SHARES Is the FSS PRM group disk bandwidth shares. Shares
are expressed as integer values between zero and
MAXINT inclusive.
Use zero shares as a place-holder for groups not using
the volume group/disk group. The value is not
literally zero: It does not block access to the volume
group/disk group. However, if a group has zero shares,
a five-second disk transaction could take over 30
minutes if the disk is busy.
The fourth and fifth fields of a disk record must be null.
Adding/modifying disk bandwidth shares
To add or modify a disk record, follow these steps:
Step 1. Open the desired configuration file in a text editor.
Step 2. Using the syntax shown below:
VOLUME:{ PRMID | GROUP }:SHARES::
and explained in the section “Disk bandwidth record syntax” on
page 123, add or modify a disk record as follows:
a. Specify the logical volume group, such as /dev/vg01, or disk group.
b. Specify the ID or group name of a PRM group, such as
databases/order.
c. Specify the PRM group’s shares for the volume group/disk group.
Step 3. Save the file and exit your editor.