Novell LINUX ENTERPRISE SERVER 11 - STORAGE ADMINISTRATION GUIDE 2-23-2010 Administration Manual page 121

7c Click Add to add a new iSCSI target.
The iSCSI target automatically presents an unformatted partition or block device and
completes the Target and Identifier fields.
7d You can accept this, or browse to select a different space.
You can also subdivide the space to create LUNs on the device by clicking Add and
specifying sectors to allocate to that LUN. If you need additional options for these LUNs,
select Expert Settings.
7e Click Next
7f Repeat Step 7c
7g Click Finish to create the devices, then click Yes to restart the iSCSI software stack.
To configure the iSCSI target, run the iSCSI Target module in YaST. The configuration is split into
three tabs. In the Service tab, select the start mode and the firewall settings. If you want to access the
iSCSI target from a remote machine, select Open Port in Firewall. If an iSNS server should manage
the discovery and access control, activate iSNS Access Control and enter the IP address of your iSNS
server. You cannot use hostnames, but must use the IP address. For more about iSNS, read
Chapter 12, "iSNS for Linux," on page
The Global tab provides settings for the iSCSI server. The authentication set here is used for the
discovery of services, not for accessing the targets. If you do not want to restrict the access to the
discovery, use No Authentication.
If authentication is needed, there are two possibilities to consider. One is that an initiator must prove
that it has the permissions to run a discovery on the iSCSI target. This is done with Incoming
Authentication. The other is that the iSCSI target must prove to the initiator that it is the expected
target. Therefore, the iSCSI target can also provide a username and password. This is done with
Outgoing Authentication. Find more information about authentication in
www.ietf.org/rfc/rfc3720.txt).
The targets are defined in the Targets tab. Use Add to create a new iSCSI target. The first dialog asks
for information about the device to export.
Target
The Target line has a fixed syntax that looks like the following:
iqn.yyyy-mm.<reversed domain name>
It always starts with iqn. yyyy-mm is the format of the date when this target is activated. Find
more about naming conventions in
Identifier
The Identifier is freely selectable. It should follow some scheme to make the whole system
more structured.
LUN
It is possible to assign several LUNs to a target. To do this, select a target in the Targets tab,
then click Edit. Then, add new LUNs to an existing target.
Path
Add the path to the block device or file system image to export.
to Step 7e for each iSCSI target device you want to create.
109.
RFC 3722
RFC 3720 (http://
(http://www.ietf.org/rfc/rfc3722.txt).
Mass Storage over IP Networks: iSCSI 121