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

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
To unprefer a network interface for a hostgroup, use the following command:
<installdirectory>/bin/ibrix_client -n -g HOSTGROUP -A DESTHOST
Making network changes
This section describes how to change IP addresses, change the cluster interface, manage routing
table entries, and delete a network interface.
Changing the IP address for a Linux X9000 client
After changing the IP address for a Linux X9000 client, you must update the X9000 Software
configuration with the new information to ensure that the management console can communicate
with the client. Use the following procedure:
1. Unmount the file system from the client.
2. Change the client’s IP address.
3. Reboot the client or restart the network interface card.
4. Delete the old IP address from the configuration database:
<installdirectory>/bin/ibrix_client -d -h CLIENT
5. Re-register the client with the management console:
<installdirectory>/bin/register_client -p console_IPAddress -c clusterIF –n ClientName
6. Remount the file system on the client.
Changing the IP address for the cluster interface on a dedicated management console
You must change the IP address for the cluster interface on both the file serving nodes and the
management console.
1. If High Availability is enabled, disable it by executing ibrix_server -m -U.
2. Unmount the file system from all file serving nodes, and reboot.
3. On each file serving node, locally change the IP address of the cluster interface.
4. Change the IP address of the cluster interface for each file serving node:
<installdirectory>/bin/ibrix_nic -c -n IFNAME -h HOSTNAME [-I IPADDR]
5. Remount the file system.
6. Re-enable High Availability if necessary by executing ibrix_server -m.
Changing the cluster interface
If you restructure your networks, you might need to change the cluster interface. The following rules
apply when selecting a new cluster interface:
• The management console must be connected to all machines (including standby servers) that
use the cluster network interface. Each file serving node and X9000 client must be connected
to the management console by the same cluster network interface. A Gigabit (or faster) Ethernet
port must be used for the cluster interface.
• X9000 clients must have network connectivity to the file serving nodes that manage their data
and to the standbys for those servers. This traffic can use the cluster network interface or a
user network interface.
To specify a new cluster interface for a cluster with a dedicated management console, use the
following command:
74 Maintaining the system