6.3 HP IBRIX X9720/StoreAll 9730 Storage Administrator Guide (AW549-96073, June 2013)

Tuning file serving nodes from the CLI
All Fusion Manager 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 alters 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:
ibrix_host_tune -L
• To tune host parameters on nodes or hostgroups:
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.
• To reset host parameters to their default values on nodes or hostgroups:
ibrix_host_tune -U {-h HOSTLIST|-g GROUPLIST} [-n OPTIONS]
To reset all options on all file serving nodes, hostgroups, and StoreAll clients, omit the -h
HOSTLIST and -n OPTIONS options. To reset host tunings on all clients, include the -g
clients option.
The values that are restored depend on the values specified for the -h HOSTLIST command:
◦ File serving nodes. The default file serving node host tunings are restored.
◦ StoreAll clients. The host tunings that are in effect for the default clients hostgroup are
restored.
◦ Hostgroups. The host tunings that are in effect for the parent of the specified hostgroups
are restored.
Tuning file serving nodes and StoreAll clients 121