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

6.7
Managing Hosts
InForm OS Version 2.3.1 3PAR InForm CLI Administrator’s Manual
6.5 Managing Hosts
The InServ Storage Server sees a host as a set of initiator port WWNs (World Wide Names) or
iSCSI Names. The InForm administration tools allow you to create, modify, and remove Fibre
Channel and iSCSI host paths and their properties. When creating a new host, you can either
create a host with or without assigning WWNs or iSCSI Names. A virtual volume that is
exported to a host is exported to all the WWNs that make up the host. If you need to export
virtual volumes to particular host computer WWNs or iSCSI Names, you can create separate
hosts on the storage server and assign each WWN or iSCSI Name to its own host. The host
management commands are described in detail in the InForm OS Command Line Interface
Reference and the CLI Help Pages.
6.5.1 Host Management CLI Commands
Use the following CLI commands to manage hosts and host paths:
■ showhost - display information about defined hosts and host paths in the system.
■ createhost - create a host or add paths to host.
■ createhostset - create a host set or add a host to an existing host set.
■ sethost - modify properties of existing hosts.
■ sethostset - change the name of a host set.
■ removehost - remove a system host or paths to a host.
■ removehostset - remove a host set from the system, or remove hosts from a set.
■ servicehost - executes removal and replacement actions for a host.
6.6 Creating Hosts
When you create a new host, you are actually defining the characteristics of a new host path
from the InServ Storage Server to the host. Defining host characteristics includes the
assignment of a name to a host, and the assignment of a path to that host. Two types of host
paths can be assigned: FC or iSCSI paths. You should create multiple paths to each host
In addition to assigning FC or iSCSI paths when creating a host, you can also annotate the host
with descriptive information such as the host’s location, IP address, operating system, model,
and owner using either the
createhost or sethost commands. This information is for