3.5.1 Matrix Server Command Reference

Chapter 1: Matrix Server Commands 31

switches that will be managed by Matrix Server. The command creates or

updates the files /etc/opt/polyserve/psSAN.cfg and /var/opt/polyserve/FCswitches.

<FC-switch> is either the name or IP address of a switch to be managed. All

switches to be configured must be specified in the same command. The node

must be unfenced when the command is run. If the <FC-switch> parameter is

not specified, the command uses the FC switches listed in

/var/opt/polyserve/FCswitches (if that file exists).

In general, this command should not be run directly. If you need to

reconfigure FC switches, run mxconfig instead, and change the information

on the switch configuration dialog. For more information, see the PolyServe

Installation Guide.

mxsanlk – show SAN ownership locks

Synopsis

/opt/polyserve/tools/mxsanlk

Description

Matrix Server uses a set of disk-based data structures called SANlocks to

protect filesystem integrity. If a problem causes a matrix to split into two or

more network partitions, the SANlocks ensure that only one of the resulting

network partitions has access to the SAN. Each SANlock is stored in a

membership partition. Before a matrix can begin accessing the SAN, it must

first acquire a majority of the SANlocks. The SANlocks are acquired in order.

mxsanlk displays the status of the SANlock stored in each membership

partition. It can be used to determine whether any of the membership

partitions need to be repaired. Also, if a network partition occurs, mxsanlk

can be used to determine which network partition has control of the SAN.

Following is some sample output. The command was issued on host

99.10.30.3. The SDMP administrator is the administrator for the matrix to

which the host belongs. There are three membership partitions.