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

IP address that corresponds to a client network. Adding a domain rule to a hostgroup restricts its
members to X9000 clients that are on the specified subnet. You can add a domain rule at any time.
To add a domain rule to a hostgroup, use the ibrix_hostgroup command as follows:
<installdirectory>/bin/ibrix_hostgroup -a -g GROUPNAME -D DOMAIN
For example, to add the domain rule 192.168 to the finance group:
<installdirectory>/bin/ibrix_hostgroup -a -g finance -D 192.168
Viewing hostgroups
To view hostgroups, use the following command. You can view all hostgroups or a specific hostgroup.
<installdirectory>/bin/ibrix_hostgroup -l [-g GROUP]
Deleting hostgroups
When you delete a hostgroup, its members are assigned to the parent of the deleted group.
To force the moved X9000 clients to implement the mounts, tunings, network interface preferences,
and allocation policies that have been set on their new hostgroup, either restart X9000 Software
services on the clients (see “Starting and stopping processes” in the system administration guide for
your system) or execute the following commands locally:
• ibrix_lwmount -a to force the client to pick up mounts or allocation policies
• ibrix_lwhost --a to force the client to pick up host tunings
To delete a hostgroup using the CLI:
<installdirectory>/bin/ibrix_hostgroup -d -g GROUPNAME
Other hostgroup operations
Additional hostgroup operations are described in the following locations:
• Creating or deleting a mountpoint, and mounting or unmounting a file system (see “Creating and
mounting file systems” in the HP StorageWorks X9000 File Serving Software File System User
Guide
• Changing host tuning parameters (see Tuning file serving nodes and X9000 clients, page 59)
• Preferring a network interface (see Preferring network interfaces, page 65)
• Setting allocation policy (see “Using file allocation” in the HP StorageWorks X9000 File Serving
Software File System User Guide)
X9300 Network Storage Gateway Administrator Guide 49