3.6.0 Matrix Server Installation Guide (5697-7079, February 2008)

Chapter 3: Install PolyServe Matrix Server 23

3. Secret Network Key. This password is required. It provides additional

security for network communications among the matrix servers. To set

this key, click the Set Secret Network Key button. You can enter

anything you want for this password, up to 86 characters in length.

NOTE: If more than one Matrix Server matrix is running on the same

subnet, be sure that each matrix has a different Secret Network

Key. This step ensures that the multicast traffic is targeted only

at the servers with the same Secret Network Key.

4. Cluster Administrative Traffic Protocol. Select either multicast or

unicast mode. Multicast mode is recommended; however, if your

network configuration does not allow multicast traffic through the

network, you can use unicast mode.

When you have completed the fields on the General Settings tab, go to the

SAN & Fencing tab.

SAN & Fencing Tab

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 server’s access to filesystems

to preserve data integrity. This step is called fencing.

The SAN & Fencing tab allows you to select the method that Matrix

Server should use to remove access to the SAN.

There are two fencing methods:

• FibreChannel switch-based fencing. When a server needs to be

fenced, Matrix Server will disable the server’s access in the