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

Starting and stopping processes
You can start, stop, and restart processes and can display status for the processes that perform internal
X9000 Software functions. The following commands also control the operation of PostgreSQL on the
machine. The PostgreSQL service is available at /usr/local/ibrix/init/.
To start and stop processes and view process status on the management console, use the following
command:
/etc/init.d/ibrix_fusionmanager [start | stop | restart | status]
To start and stop processes and view process status on a file serving node, use the following command.
In certain situations, a follow-up action is required after stopping, starting, or restarting a file serving
node.
/etc/init.d/ibrix_server [start | stop | restart | status]
To start and stop processes and view process status on an X9000 client, use the following command:
/etc/init.d/ibrix_client [start | stop | restart | status]
Tuning file serving nodes and X9000 clients
The default host tuning settings are adequate for most cluster environments. However, HP Support
may recommend that you change certain file serving node or X9000 client tuning settings to improve
performance.
Host tuning changes are executed immediately for file serving nodes. For X9000 clients, a tuning
intention is stored in the management console. When X9000 Software services start on a client, the
client queries the management console for the host tunings that it should use and then implements
them. If X9000 Software services are already running on a client, you can force the client to query
the management console by executing ibrix_client or ibrix_lwhost --a on the client, or by
rebooting the client.
You can locally override host tunings that have been set on clients by executing the ibrix_lwhost
command.
All management console commands for tuning hosts include the -h HOSTLIST option, which supplies
one or more hostgroups. Setting host tunings on a hostgroup is a convenient way to tune a set of
clients all at once. To set the same host tunings on all clients, specify the clients hostgroup.
CAUTION:
Changing host tuning settings will alter file system performance. Contact HP Support before changing
host tuning settings.
Use the ibrix_host_tune command to list or change host tuning settings:
• To list default values and valid ranges for all permitted host tunings:
<installdirectory>/bin/ibrix_host_tune -L
• To tune host parameters on nodes or hostgroups:
<installdirectory>/bin/ibrix_host_tune -S {-h HOSTLIST|-g GROUPLIST} -o OPTIONLIST
Contact HP Support to obtain the values for OPTIONLIST. List the options as option=value
pairs, separated by commas. To set host tunings on all clients, include the -g clients option.
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