3.5.1 Matrix Server Installation Guide (June 2008)

Appendix E: Configure the Matrix from the Command Line 72
Select the Cluster Administrative Traffic Protocol
Specify either multicast or unicast mode. Multicast mode is
recommended.
Select a Fencing Method
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.
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
FibreChannel fabric. The server must be rebooted to regain access to
the SAN.
• Web management-based fencing. Matrix Server uses remote
management hardware on the server to remove its access to PSFS
filesystems. (See the PolyServe Hardware and Software Compatibility
Guide on the PolyServe Web site for a list of supported servers and
firmware.)
Select a protocol for cluster administrative traffic
< OK > <Cancel>
Multicast
Unicast