HP 3PAR Command Line Interface Administrator's Manual: HP 3PAR OS 3.1.2 (QR482-96525, September 2013)

Creating a Domain-Specific Host
In order to create a domain-specific host, you must have Super or Edit rights in the all domain.
For details about this restriction, see the HP 3PAR StoreServ Storage Concepts Guide and the
createhost command in the HP 3PAR Command Line Interface Reference.
To create a domain-specific host, issue the createhost command as described in createhost
“Creating a Host with a Fiber Channel Path” (page 67) and “Creating a Host with an iSCSI
Path” (page 67) with the -domain <domain_name>|set:<set_name> option to specify the
domain or domain set in which you are creating the host.
Modifying a Domain-Specific Host
Perform modifications to domain-specific hosts using the createhost and sethost commands,
as discussed in “Modifying Hosts” (page 68).
Any existing domain-specific host can be modified as follows:
• By changing the host’s name. See “Changing a Host Name” (page 68) for instructions. You
must have Super or Edit rights in the all domain, or Edit rights in a specified domain, to
perform this operation. See the HP 3PAR StoreServ Storage Concepts Guide for details about
domain restrictions.
• By adding or removing WWNs or iSCSI names. This operation is restricted to users with Super
or Edit rights in the all domain. For details about domain restrictions, see the HP 3PAR
StoreServ Storage Concepts Guide. See the following sections for instructions:
◦ “Adding Fiber Channel Path WWNs” (page 68).
◦ “Adding iSCSI Path iSCSI Names” (page 68).
◦ “Removing Fibre Channel Path WWNs” (page 68).
◦ “Removing iSCSI Path iSCSI Names” (page 69).
• By adding or removing iSCSI CHAP authentication information. This operation is restricted to
users with Super or Edit rights in the all domain (see the HP 3PAR StoreServ Storage Concepts
Guide for details about this restriction). See the following for instructions:
◦ “Configuring iSCSI CHAP Authentication Information” (page 69)
◦ “Removing iSCSI CHAP Authentication Information” (page 69)
Changing a Host Domain
This operation is restricted to users with Super or Edit rights in the all domain. For details about
domain restrictions, see the HP 3PAR StoreServ Storage Concepts Guide.
For information about changing a host’s domain association, see “Managing Domain Objects”
(page 60).
Using Persistent Ports for Nondisruptive Online Software Upgrades
The HP 3PAR OS 3.1.2 online software upgrade process does not require shutting down host-facing
ports for an extended period of time. HP 3PAR OS 3.1.2 supports using persistent ports, or virtual
ports, during the online software upgrade process in order to provide a transparent mechanism
for maintaining host I/O with no disruptions.
Persistent ports allow HP 3PAR storage systems' host-facing ports to assume the identity of partner
ports that are automatically designated by the system. For FC and FCoE ports, this is achieved
through the use of N_Port ID Virtualization (NPIV). For iSCSI ports, this is achieved through the use
of IP failover. The port failover operation takes place quickly enough to ensure that all host paths
74 Managing Ports and Hosts