6.0 HP X9320 Network Storage System Administrator Guide (AW542-96009, December 2011)

Setting up a monitor
File serving node failover pairs can be identified as network interface monitors for each other.
Because the monitoring must be declared in both directions, this is a two-pass process for each
failover pair.
To set up a network interface monitor, use the following command:
<installdirectory>/bin/ibrix_nic -m -h MONHOST -A DESTHOST/IFNAME
For example, to set up file serving node s2.hp.com to monitor file serving node s1.hp.com over
user network interface eth1:
<installdirectory>/bin/ibrix_nic -m -h s2.hp.com -A s1.hp.com/eth1
To delete network interface monitoring, use the following command:
<installdirectory>/bin/ibrix_nic -m -h MONHOST -D DESTHOST/IFNAME
Deleting standbys
To delete a standby for a network interface, use the following command:
<installdirectory>/bin/ibrix_nic -b -U HOSTNAME1/IFNAME1
For example, to delete the standby that was assigned to interface eth2 on file serving node
s1.hp.com:
<installdirectory>/bin/ibrix_nic -b -U s1.hp.com/eth2
Setting up HBA monitoring
You can configure High Availability to initiate automated failover upon detection of a failed HBA.
HBA monitoring can be set up for either dual-port HBAs with built-in standby switching or single-port
HBAs, whether standalone or paired for standby switching via software. X9000 Software does
not play any role in vendor- or software-mediated HBA failover—traffic moves to the remaining
functional port without any management console involvement.
HBAs use worldwide names for some parameter values. These are either worldwide node names
(WWNN) or worldwide port names (WWPN) The WWPN is the name an HBA presents when
logging in to a SAN fabric. Worldwide names consist of 16 hexadecimal digits grouped in pairs.
In X9000 Software, these are written as dot-separated pairs (for example,
21.00.00.e0.8b.05.05.04).
To set up HBA monitoring, first discover the HBAs, and then perform the procedure that matches
your HBA hardware:
• For single-port HBAs without built-in standby switching: Turn on HBA monitoring for all ports
that you want to monitor for failure (see “Turning HBA monitoring on or off” (page 34)).
• For dual-port HBAs with built-in standby switching and single-port HBAs that have been set
up as standby pairs via software: Identify the standby pairs of ports to the configuration
database (see “Identifying standby-paired HBA ports” (page 34), and then turn on HBA
monitoring for all paired ports (see “Turning HBA monitoring on or off” (page 34)). If monitoring
is turned on for just one port in a standby pair and that port then fails, the management console
will fail over the server even though the HBA has automatically switched traffic to the surviving
port. When monitoring is turned on for both ports, the management console initiates failover
only when both ports in a pair fail.
When both HBA monitoring and automated failover for file serving nodes are set up, the
management console will fail over a server in two situations:
• Both ports in a monitored set of standby-paired ports fail. Because, during the HBA monitoring
setup, all standby pairs were identified in the configuration database, the management console
knows that failover is required only when both ports fail.
• A monitored single-port HBA fails. Because no standby has been identified for the failed port,
the management console knows to initiate failover immediately.
Cluster high availability 33