HP VMA-series Memory Arrays - Manual (Page 80)

80 AM456-9007B Rev 02 HP VMA SAN Gateway Installation and User Guide
Exporting LUNs
The fifth step in configuring the vSHARE HP VMA SAN Gateway is to export the
LUNs to an initiator. The LUN must be exported before it may be accessed over
block protocols.
Access to LUNs may be restricted to a specific initiator group, initiator, or target
port when the LUN is exported using the lun export command.
• The optional [igroup | initiator] parameter identifies the initiator
group or initiator that may access the LUN.
• The optional [port] parameter identifies the target that may access the LUN.
A LUN ID is a SCSI identifier which may be used to differentiate between devices
on the same target port. By default, vSHARE automatically assigns LUN IDs to
LUNs when they are exported to an initiator group or initiator.
vSHARE optionally enables you to assign a special, user-defined LUN ID to a
vSHARE LUN when you export LUNs to an initiator group or initiator. User-
defined LUN IDs may make it easier differentiate between LUNs. If you do assign
user-defined LUN ID, HP recommends that you specify a number below 255 as
some operating systems (for example, Windows) will only discover LUN IDs
between 0 and 254. LUNs cannot be exported if they are assigned an existing LUN
ID; an error message is returned and the export fails.
lun export Command
The lun export command enables you to export the LUNs within a specific
container to an initiator or initiator group. A single LUN may be exported multiple
times through different target ports (multipathing) or to different initiators
(clustered access).
Syntax
[no] lun export container <container_name> name <lun_name>
[lunid] [to <igroup> | <initiator>| all]... [using <port …>]