3PAR InForm® OS 2.3.1 CLI Administrator's Manual (320-200180 Rev B, February 2010)

6.14
Managing Host Autonomic Groups
3PAR InForm CLI Administrator’s Manual InForm OS Version 2.3.1
6.10 Managing Host Autonomic Groups
Hosts can be combined into autonomic groups, which are sets that can be managed as one
object. Host sets are part of the Autonomic Groups feature. If you have a group of hosts in a
cluster and all the hosts require the same administrative procedures, it is easier to group those
hosts into a set and manage them together. Individual hosts can be members of multiple host
sets. Hosts added to a set inherit the privileges of that set. For example, If a virtual volume is
exported to a group of hosts and a new host is added to the host set, the new host can see the
virtual volume as soon as it is added to the host set. The opposite is also true. If a host is
removed from a set, all the privileges of that host set are revoked for the removed host.
A host in a host set cannot be removed from the system until it has been removed from the
host set, or until the host set is removed from the system. Removing a host set does not remove
the hosts in that set. Changing the name of a host in a set does not change the privileges of
the host or remove it from the host set.
6.10.1 Creating Host Sets
Any hosts added to the host set automatically see all VLUNs available to the host set, provided
there are no conflicting LUN IDs. If the added host has an exported LUN ID in the LUN ID range
of the host set, the host cannot see the LUN and must be assigned a new ID. For more
information about VLUN templates, see 7.18 Exporting Virtual Volumes.
 To create a host set, issue the createhostset <set_name> <host_names> command,
where:
◆ <set_name> is the name of the host set being created.
◆ <host_names> are the names of the hosts included in the host set.
For a complete list of options available for the
createhostset command, see the InForm OS
Command Line Interface Reference and InForm CLI Help.
NOTE: Physically disconnecting a host server from the storage server port does
not delete the host from the system.