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

6.16
Managing Host Personas
3PAR InForm CLI Administrator’s Manual InForm OS Version 2.3.1
6.11 Managing Host Personas
Host personas are a set of behaviors that permit hosts connected to FC or iSCSI ports on the
InServ Storage Server to deviate from the default host behavior. By assigning a persona to a
host, multiple host types that require distinct customized responses can share a single InServ
Storage Server port. For example, hosts running Windows, Linux, and AIX operating systems
can all connect to the same InServ port. This simplifies connecting hosts to the storage server
and reduces management costs related to complex host connections.
A host persona defines the custom responses for certain SCSI commands and does not affect
any of the FC port settings. Host personas are tied to the host name and identified by the host
persona number. You can define the host persona for a host by setting the host persona
number when the host is created with the
createhost command, or modify it later with the
sethost command. The host management CLI commands are described in detail in the
InForm OS Command Line Interface Reference and the CLI Help Pages.
Different host personas have different functions and support different host operating systems.
The specific host persona is designated by the host persona number. Depending on the
selected host persona number, the following additional capabilities are supported:
■ UARepLun - Sends an unit attention when the LUN list changes due to adding or removing
VLUNs.
■ RTPG - Enables the Report Target Port Group (RTPG) command and asymmetric state
change unit attention when path counts change due to adding or removing ports in the
host's definition.
■ VolSetAddr - Enables HPUX Volume Set Addressing (VSA).
■ SoftInq - Enables inquiry data formats for hosts such as Egenera and NetApp.
■ NACA - Enables Normal Auto Contingent Allegiance (NACA) bit for AIX.
■ SESLun - Enables SCSI Enclosure Services (SES) LUN ID 254 for Host Explorer agent support.
NOTE: Each host connected to the InServ Storage Server must use a host persona
with the SCSI Enclosure Services LUN (SESLun) enabled, or the Host Explorer agent
cannot communicate with the InServ Storage Server.