ATTO Technology 2500C Manual De Usuario

16

Configuration: mapping iSCSI

Multiple Target mode breaks the single iSCSI 
node of the iPBridge and replaces it with a much 
more configurable mapping scheme. This new 
mapping scheme allows you to segregate storage 
into different iSCSI nodes within the iPBridge, 
with each iSCSI target having its own set of 
access criteria.
For example, if you have two servers and a library 
with four tapes and a media changer, the default 
mapping would provide both servers access to all 
tapes and the media changer (single target mode). 
If you configured Multiple Target mode, you 
would be able to map some devices to one server 
and other devices to the other server, requiring 
separate usernames and passwords for access. 

If Multiple Target mode is enabled, the 
Automap, Route, RouteDisplay and CHAP 
CLI commands behave differently. (Refer to 

To control access, different CHAP account names 
and CHAP secrets can be assigned to each target. 
(Refer to 

Single Target mode is the default. Use ATTO 
ExpressNAV interface to map devices 
automatically or manually. Refer to 

1

From the ExpressNAV main menu, click on the 
iSCSI menu item on the left side of the screen.

2

Click on the Multi Target Mode enabled 
button.

3

Click Submit.

4

Go to the Mapping page and type [name] in 
the Add an iSCSI target box

The name is a suffix appended to the standard 
IPBridge iqn name. The suffix name can be up 
to 24 characters. 

5

Click on Submit.

6

In the greyed box at the bottom of the page, 
click on the target name you created.

7

In the next mapping page, click on AutoMap
•  All the CLI commands necessary to enable 

mapping are performed.

•  The iPBridge maps itself as a device at LUN 

0. 

•  A target name suffix is added to the iqn of 

each SCSI device such as 

bxtyy-vendorid-devicename

•  x is the iPBridge SCSI port number 
•  yy is the SCSI device SCSI target ID
•  vendorid is the SCSI device vendor ID
•  devicename is the SCSI device’s 

inquiry device name.

8

To save the configuration, go the Restart 
Firmware page and click Restart.

1

From the ExpressNAV main menu, click on the 
iSCSI menu item on the left side of the screen.

2

Click on the Multi Target Mode enabled 
button.

3

Click Submit.

4

Go to the Mapping page and type [name] in 
the Add an iSCSI target box
The name is a suffix appended to the standard 
IPBridge iqn name. The suffix name can be up 
to 24 characters. 

5

Click on Submit.

6

In the greyed box at the bottom of the page, 
click on the target name you created.

7

After the next mapping page opens, drag the 
boxes representing SCSI devices to the LUNs 
you want. (See Exhibit 2.4-2.)

8

Click Submit.

9

Repeat from 

 for each target you want to 

configure.

10 To save the configuration, go the Restart 

Firmware page and click Restart.