3.1.2 Matrix Server Installation Guide

Table Of Contents
Chapter 2: Install PolyServe Matrix Server 9
Copyright © 1999-2007 PolyServe, Inc. All rights reserved.
NOTE: It is important to partition the newly created LUNs, which are
represented to the operating system as sd devices, appropriately
before Matrix Server is configured. (For example, use fdisk or a
similar tool.) If you later need to repartition a disk containing a
membership partition, you will need to stop Matrix Server before
you change the layout. While the matrix is stopped, you will not
be able to access other disks in the matrix.
Configure FC Switches for the Matrix
NOTE: For all FC switches, it is best practice to place each HBA port and
its storage ports in a separate zone. No other initiator HBA port
should be present in this zone.
When certain problems occur on a server (for example, hardware
problems or the loss of matrix network communications), and the server
ceases to effectively coordinate and communicate with other servers in
the matrix, Matrix Server must remove the servers access to filesystems
to preserve data integrity. This step is called fencing.
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 servers
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 reset or power off the server.
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 see the disks in the SAN. You may need to enable