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

Appendix A: Install the SLES9 Operating System and Kernel 42
Normal operation of the cluster depends on a reliable network
hostname resolution service. If the hostname lookup facility becomes
unreliable, this can cause reliability problems for the running cluster.
Therefore, you should ensure that your hostname lookup services are
configured to provide highly reliable lookups, particularly for the
hostnames that are critical to cluster operation. These critical
hostnames include the hostnames of all servers in the cluster and the
hostnames of all FibreChannel switches being used with the cluster.
One easy way to ensure reliable hostname lookups is to put all critical
hostnames and their IP addresses in /etc/hosts on each of the servers
(see the hosts(5) man page.) After you have done this, ensure that the
host lookup order in /etc/nsswitch.conf specifies that the hosts file will
be examined first (see the nsswitch.conf(5) man page). Other
mechanisms, apart from /etc/hosts, can also be used, depending on
your site network configuration.
• /etc/sysconfig/kernel file. If the following modules are present in the
INITRD_MODULES directive, remove them.
Clustered File System appends these modules to the /etc/hotplug/
blacklist file, which specifies modules that should not be automatically
loaded by the kernel. This creates a controlled environment for
Clustered File System at boot time, allowing it to load its own
modules. If this behavior is not desired, the blacklist file can be edited;
however, doing this is not recommended.
lpfc qla2322 qla6312
qla2100 qla2xxx qla6322
qla2200 qla2xxx_conf qlogicfc
qla2300