- ATTO iPBridge Installation And Operation Manual
46
Configuration & Management: mapping
To manually configure MultiTargetMode
1 At the CLI prompt type
set MultiTargetMode enabled
Because current mapping will be deleted, you
are asked for confirmation to change mapping.
2Type
SCSITargets
to list the SCSI devices
connected to the SCSI port.
The
SCSITargets
command lists each device
and its corresponding SCSI address. In the
example in Exhibit 2.3-2, the first tape drive is
on SCSI Port 0 (on the IPBridge) at Target ID 4,
LUN 0.
3 The command
iSCSITarget
creates each iSCSI
Target node. Type
iSCSITarget [name]
The name is a suffix appended to the standard
IPBridge iqn name. The suffix name can be up
to 24 characters.
4Type
RouteDisplay
to see the results of the
iSCSITarget
command.
5 The
Route
command performs the mapping.
Type
Route iSCSI <Target Name> <lun> SCSI <sb>
<st> <sl>
•
Target Name
corresponds to the Target
Name created with the
iSCSITarget
command.
•
lun
is the iSCSI LUN the SCSI device is to
be mapped to
•
sb
is the SCSI bus/port on the iPBridge the
device is connected to
•
st
and
sl
are the SCSI target ID and SCSI
LUN that the SCSI device is currently
configured for.
To map the first tape device listed in the
scsitargets command in Exhibit 2.3-3, type
route iscsi tape0 scsi 0 4 0
To remove mapping
1Type:
Route iSCSI [Target Name] [lun] delete
To remove an iSCSITarget
1Type
iSCSITarget [Target Name] delete
Example
Refer to Exhibit 2.3-1. A SCSI library containing
a media changer and four tapes is connected to the
IPBridge through SCSI port 0.
In single target mode, the media changer is at 0, 0,
1 (port, target and LUN) and each of the tapes is
at a different LUN.
The iPBridge occupies iSCSI LUN 0 by default,
In multiple target mode, the media changer is
mapped differently in each node: at iSCSI LUN 3
in node 0 and at iSCSI LUN 1 in node 1.
Exhibit 2.3-2 Result of typing SCSITargets 0
; sb st sl Device Type Vendor ID Product ID Rev. Serial Number
0 0 0 MediumChanger ATTO DVT 3.22 U0192529
0 4 0 Tape IBM ULTRIUM-TD 38D0 1110094262 U
0 5 0 Tape IBM ULTRIUM-TD 38D0 1110122312 U
0 6 0 Tape IBM ULTRIUM-TD 38D0 1110122344 U
Exhibit 2.3-3 Result of typing RouteDisplay iSCSI
;Target Name Lun SB ST SL
;==========================================
tape0 0 Bridge
tape0 1 0 4 0