5.5 HP StorageWorks X9720 Network Storage System Administrator Guide (AW549-96026, March 2011)

For example, to set netmask 255.255.0.0 and broadcast address 10.0.0.4 for interface eth3 on file
serving node s4.hp.com:
<installdirectory>/bin/ibrix_nic -c -n eth3 -h s4.hp.com -M 255.255.0.0 -B 10.0.0.4
Preferring network interfaces
After creating a user network interface for file serving nodes or X9000 clients, you will need to prefer
the interface for those nodes and clients. (It is not necessary to prefer a network interface for NFS or
CIFS clients, because they can select the correct user network interface at mount time.)
When you prefer a user network interface for traffic from a source host to a destination host, traffic
in the reverse direction remains defaulted to the cluster interface.
A network interface preference is executed immediately on file serving nodes. For X9000 clients, the
preference intention is stored on the management console. When X9000 Software services start on
a client, the client queries the management console for the network interface that has been preferred
for it and then begins to use that interface. If the services are already running on X9000 clients when
you prefer a network interface, you can force clients to query the management console by executing
the command ibrix_lwhost --a on the client or by rebooting the client.
Preferring a network interface for a file serving node or X9000 client
The first command prefers a network interface for a File Server Node; the second command prefers
a network interface for a client.
<installdirectory>/bin/ibrix_server -n -h SRCHOST -A DESTHOST/IFNAME
<installdirectory>/bin/ibrix_client -n -h SRCHOST -A DESTHOST/IFNAME
Execute this command once for each destination host that the file serving node or X9000 client should
contact using the specified network interface (IFNAME). For example, to prefer network interface
eth3 for traffic from file serving node s1.hp.com to file serving node s2.hp.com:
<installdirectory>/bin/ibrix_server -n -h s1.hp.com -A s2.hp.com/eth3
Preferring a network interface for a hostgroup
You can prefer an interface for multiple X9000 clients at one time by specifying a hostgroup. To
prefer a user network interface for all X9000 clients, specify the clients hostgroup. After preferring
a network interface for a hostgroup, you can locally override the preference on individual X9000
clients with the command ibrix_lwhost.
To prefer a network interface for a hostgroup, use the following command:
<installdirectory>/bin/ibrix_hostgroup -n -g HOSTGROUP -A DESTHOST/IFNAME
The destination host (DESTHOST) cannot be a hostgroup. For example, to prefer network interface
eth3 for traffic from all X9000 clients (the clients hostgroup) to file serving node s2.hp.com:
<installdirectory>/bin/ibrix_hostgroup -n -g clients -A s2.hp.com/eth3
Unpreferring network interfaces
To return file serving nodes or X9000 clients to the cluster interface, unprefer their preferred network
interface. The first command unprefers a network interface for a file serving node; the second command
unprefers a network interface for a client.
<installdirectory>/bin/ibrix_server -n -h SRCHOST -D DESTHOST
<installdirectory>/bin/ibrix_client -n -h SRCHOST -D DESTHOST
X9720 Network Storage System Administrator Guide 73