3.7.0 HP StorageWorks HP Scalable NAS File Serving Software upgrade guide HP Scalable NAS for Linux (AG513-96005, October 2009)

SAN boot disk
With certain storage arrays, the boot disk can be on the SAN. In this case, the HBA
driver must be loaded with the kernel so that the boot disk can be located. (You may
need to take steps to ensure that the appropriate HBA driver is loaded. See your
vendor documentation for more information.) You will need to use non-fabric fencing
with this configuration.
Install other HBA drivers
If your configuration requires either an HBA driver version that is provided with HP
Scalable NAS but is not the default, or an HBA driver version that is not provided
with HP Scalable NAS, you can install that version after HP Scalable NAS is installed
on the server. (The upgrade procedure for your configuration specifies when to install
the driver.)
4. Modify system files
You may need to modify the following files on each server:
• Edit the /etc/hosts file. The operating system places both localhost and the
server name on the 127.0.0.1 entry in the /etc/hosts file. For example:
127.0.0.1 localhost.localdomain localhost
HP Scalable NAS requires that the server name appear on a separate line with
its real IP address, as in the following example. Be sure to move the server name
to its own line in the /etc/hosts file on each server. We recommend that you
specify the fully qualified name.
127.0.0.1 localhost
10.1.1.100 servername.localdomain
Normal operation of the cluster depends on a reliable network hostname resolution
service. If the hostname lookup facility becomes unreliable, this can cause reliab-
ility 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/
Install the operating system96