Command Reference Guide

Chapter 1: Matrix Server Commands 43

NOTE: If an attempt to mount the copied filesystem fails with an “FSID

conflict” error, run the following command as user root. In the

command, <device> is the partition, such as /dev/psd/psd1p7, that

contains the copied filesystem, and <label> is the name that should be

used to identify the filesystem.

/opt/polyserve/tools/psfslabel <device> “<label>”

psfsrq – restore quota data

Synopsis

/opt/polyserve/sbin/psfsrq [-f <path>] <filesystem>

Description

The psfsrq command restores the quota data generated by the psfsdq

command to the specified PSFS filesystem.

The -f option specifies the file that psfsrq should read to obtain the quota

data. If this option is not specified, psfsdq reads from stdin. filesystem is the

psd or psv device used for the filesystem.

The psfsdq and psfsrq commands should be run in conjunction with the

standard filesystem backup utilities, as those utilities do not save the quota

limits set on the filesystem.

psfssema – manage matrix-wide file locks

Synopsis

/opt/polyserve/bin/psfssema -i <filename>

/opt/polyserve/bin/psfssema -g <filename>

/opt/polyserve/bin/psfssema -r <filename>

/opt/polyserve/bin/psfssema -d <filename>

Description

The psfssema semaphore utility provides a simple synchronization

mechanism for managing matrix-wide file locks. This utility can be used in

shell scripts on different nodes of a matrix and takes advantage of the PSFS

filesystem and its internode communication abilities. For example, you might

want to use matrix-wide file locking in a Start or Stop script for a service or

device monitor.