HP StorageWorks x9720 Administrator's Manual page 59

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.
To reset host parameters to their default values on nodes or hostgroups:
<installdirectory>/bin/ibrix_host_tune -U {-h HOSTLIST|-g GROUPLIST} [-n OPTIONS]
To reset all options on all file serving nodes, hostgroups, and X9000 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.
◦
X9000 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.
To list host tuning settings on file serving nodes, X9000 clients, and hostgroups, use the
following command. Omit the -h argument to see tunings for all hosts. Omit the -n argument
to see all tunings.
<installdirectory>/bin/ibrix_host_tune -l [-h HOSTLIST] [-n OPTIONS]
To set the communications protocol on nodes and hostgroups, use the following command.
To set the protocol on all X9000 clients, include the -g clients option.
<installdirectory>/bin/ibrix_host_tune -p {UDP|TCP} {-h HOSTLIST| -g GROUPLIST}
To set server threads on file serving nodes, hostgroups, and X9000 clients:
<installdirectory>/bin/ibrix_host_tune -t THREADCOUNT {-h HOSTLIST| -g GROUPLIST}
To set admin threads on file serving nodes, hostgroups, and X9000 clients, use this command.
To set admin threads on all X9000 clients, include the -g clients option.
<installdirectory>/bin/ibrix_host_tune -a THREADCOUNT {-h HOSTLIST| -g GROUPLIST}
Tuning X9000 clients locally
Linux clients. Use the ibrix_lwhost command to tune host parameters. For example, to set the
communications protocol:
<installdirectory>/bin/ibrix_lwhost --protocol -p {tcp|udp}
To list host tuning parameters that have been changed from their defaults:
<installdirectory>/bin/ibrix_lwhost --list
See the ibrix_lwhost command description in the HP StorageWorks X9000 File Serving
Software CLI Reference Guide for other available options.
Tuning file serving nodes and X9000 clients 59