3.4.0 Matrix Server Installation Guide

Chapter 2: Install PolyServe Matrix Server 12

When you configure the matrix later in this procedure, you can select the

fencing method that you want to use:

• FibreChannel Switch-based fencing (also called “fabric fencing”).

When a server needs to be fenced, Matrix Server disables the server’s

access in the FibreChannel fabric.

• Web Management-Based Fencing via Server Reset/Shutdown (also

called “server-based fencing”). Matrix Server uses remote

management hardware on the server to remove its access to PSFS

filesystems.

For sites using fabric fencing, the FibreChannel switches must be

configured as described below to enable matrix operations across the

SAN.

Configuring the FibreChannel switches is not required for sites using

server-based fencing. However, if the switches are configured as

described here, certain Matrix Server commands can return more

information.

To configure FibreChannel switches, complete the following tasks:

• Enable server access to the SAN. Each server that will be in the matrix

must be able to access the disks in the SAN. You may need to enable

server ports on the FC switches or to change the zoning configuration

to give servers the necessary access to the SAN.

• Modify the SNMP setup. Make the following changes:

– Enable access to the SNMP agent from each server that will be in

the matrix.

– Set the SNMP community string to the desired value. The

community string must be the same for all FibreChannel switches.

If you are using fabric fencing, ensure that the community string

has write privileges. For server-based fencing, you can optionally

configure a read-only community string.

– On Brocade switches only, run the snmpMibCapSet command on

the switch. Change the famib setting to yes and accept the default

values for the other settings.