Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

Figure 7-4
CP server, SFCFS cluster, and coordinator disks
Coordinator disk Coordinator disk
CP server
Client Cluster
Node 1
Node 2
Application Storage
LLT links
TCP/IP
Fiber channel
Recommended CP server configurations
Following are the recommended CP server configurations:
■ Multiple application clusters use three CP servers as their coordination points.
See Figure 7-5 on page 94.
■ Multiple application clusters use a single CP server and multiple pairs of
coordinator disks (two) as their coordination points.
See Figure 7-6 on page 95.
■ Multiple application clusters use a single CP server as their coordination point
This single coordination point fencing configuration must use a highly available
CP server that is configured on an SFHA cluster as its coordination point.
See Figure 7-7 on page 95.
Warning: In a single CP server fencing configuration, arbitration facility is not
available during a failover of the CP server in the SFHA cluster. So, if a network
partition occurs on any application cluster during the CP server failover, the
application cluster is brought down.
93Preparing to configure SFCFS
About planning to configure I/O fencing