Unpreferring Network Interfaces; Making Network Changes; Changing The Ip Address For A Linux X9000 Client; Changing The Cluster Interface - HP IBRIX X9720 System Administrator Manual

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.
ibrix_server -n -h SRCHOST -D DESTHOST
ibrix_client -n -h SRCHOST -D DESTHOST
To unprefer a network interface for a hostgroup, use the following command:
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 Fusion Manager 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:
ibrix_client -d -h CLIENT
5. Re-register the client with the Fusion Manager:
register_client -p console_IPAddress -c clusterIF –n ClientName
6. Remount the file system on the client.

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 Fusion Manager 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 Fusion Manager 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 virtual cluster interface, use the following command:
ibrix_fm -c <VIF IP address> –d <VIF Device> -n <VIF Netmask>
-v cluster [–I <Local IP address_or_DNS hostname>]

Managing routing table entries

X9000 Software supports one route for each network interface in the system routing table. Entering
a new route for an interface overwrites the existing routing table entry for that interface.
Adding a routing table entry
To add a routing table entry, use the following command:
ibrix_nic -r -n IFNAME -h HOSTNAME -A -R ROUTE
The following command adds a route for virtual interface eth2:232 on file serving node
s2.hp.com, sending all traffic through gateway gw.hp.com:
Maintaining networks 89