5.5 HP StorageWorks X9300 Network Storage Gateway Administrator Guide (AW539-96007, March 2011)

<installdirectory>/bin/ibrix_powersrc -d -h POWERSRCLIST
Turning automated failover on and off
Automated failover is turned off by default. When automated failover is turned on, the management
console starts monitoring heartbeat messages from file serving nodes. You can turn automated failover
on and off for all file serving nodes or for selected nodes.
To turn on automated failover, use the following command:
<installdirectory>/bin/ibrix_server -m [-h SERVERNAME]
To turn off automated failover, include the -U option:
<installdirectory>/bin/ibrix_server -m -U [-h SERVERNAME]
To turn automated failover on or off for a single file serving node, include the -h SERVERNAME
option.
Manually failing over a file serving node
To set up a cluster for manual failover, first identify server-level or segment-level standbys for each file
serving node, as described in “Identifying standbys for file serving nodes” on page 27.
Manual failover does not require the use of programmable power supplies. However, if you have
installed and identified power supplies for file serving nodes, you can power down a server before
manually failing it over. You can fail over a file serving node manually, even when automated failover
is turned on.
A file serving node can be failed over from the GUI or the CLI.
On the CLI, complete the following steps:
1. Run ibrix_server -f, specifying the node to be failed over in the HOSTNAME option. If
appropriate, include the -p option to power down the node before segments are migrated:
<installdirectory>/bin/ibrix_server -f [-p] -h HOSTNAME
2. Determine whether the failover was successful:
<installdirectory>/bin/ibrix_server -l
The contents of the STATE field indicate the status of the failover. If the field persistently shows
Down-InFailover or Up-InFailover, the failover did not complete; contact HP Support for assistance.
For information about the values that can appear in the STATE field, see “What happens during a
failover” on page 27.
Failing back a file serving node
After automated or manual failover of a file serving node, you must manually fail back the server,
which restores ownership of the failed-over segments and network interfaces to the server. Before
failing back the node, confirm that the primary server can see all of its storage resources and networks.
The segments owned by the primary server will not be accessible if the server cannot see its storage.
To fail back a file serving node, use the following command. The HOSTNAME argument specifies the
name of the failed-over node.
<installdirectory>/bin/ibrix_server -f -U -h HOSTNAME
Configuring failover30