HP StorageWorks Clustered File System 3.1.1 for Linux Installation Guide (May 2006)

Chapter 4: Install HP Clustered File System 17
To configure FibreChannel switches, complete the following tasks:
• Enable server access to the SAN. Each server that will be in the cluster
must be able to see 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 cluster.
– 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.
• For Cisco and McDATA switches, each server should be placed in a
separate zone with its storage.
Typically these tasks can be performed from the FC switch or from third-
party applications. Refer to your FC switch or application documentation
for more information. For EMC PowerPath, also refer to the PowerPath
documentation for zoning requirements.
6. Create LUNs or Disk Partitions for Membership
Partitions
Clustered File System uses a set of membership partitions to control
access to the SAN and to store the device naming database, which
includes the global device names that Clustered File System assigns to the
SAN disks placed under its control.
Clustered File System can use either one or three membership partitions.
To ensure that a membership partition is always available, we strongly
recommend that you use three membership partitions.