3.5.1 Matrix Server Command Reference

Chapter 1: Matrix Server Commands 46

psfssuspend – suspend a PSFS filesystem

Synopsis

/opt/polyserve/tools/psfssuspend <directory_mountpoint>

Description

The psfssuspend utility suspends a PSFS filesystem in a stable, coherent, and

unchanging state. While the filesystem is in this state, you can copy it for

backup and/or archival purposes. When copying directly from a suspended

device, be sure to use the raw device (/dev/rpsd/...) to ensure that all blocks

copied are up-to-date.The filesystem is essentially unusable while it is

suspended; however, applications that can tolerate extended waits for I/O do

not need to be terminated.

The psfsresume utility restores a suspended filesystem. The psfssuspend and

psfsresume utilities affect the specified filesystem on all servers where it is

mounted; however, the utilities should be executed on only one server in the

matrix.

To suspend a filesystem, issue the following command on one server that has

mounted the filesystem. You must be user root.

/opt/polyserve/tools/psfssuspend directory_mountpoint

psfsunpack – unpack a PSFS filesystem image

Synopsis

/opt/polyserve/tools/psfsunpack

Description

This command should be used only under the direction of PolyServe

personnel.

psvctl – manage dynamic volumes

Synopsis

/opt/polyserve/tools/psvctl