168 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
Figure 5-59   iSCSI Configuration
The following parameters can be updated:
/SM590000System Name
It is important to set the system name correctly because it is part of the IQN for the node.
To change the system name, click the system name and specify the new name.
/SM590000iSCSI Aliases (Optional)
An iSCSI alias is a user-defined name that identifies the node to the host. Complete the 
following steps to change an iSCSI alias:
a. Click an iSCSI alias. 
b. Specify a name for it.
Each node has a unique iSCSI name that is associated with two IP addresses. After the 
host starts the iSCSI connection to a target node, this IQN from the target node is visible in 
the iSCSI configuration tool on the host.
/SM590000iSNS and CHAP
You can specify the IP address for the iSCSI Storage Name Service (iSNS). Host systems 
use the iSNS server to manage iSCSI targets and for iSCSI discovery.
You can also enable Challenge Handshake Authentication Protocol (CHAP) to 
authenticate the system and iSCSI-attached hosts with the specified shared secret.
The CHAP secret is the authentication method that is used to restrict access for other 
iSCSI hosts that use the same connection. You can set the CHAP for the whole system 
under the system properties or for each host definition. The CHAP must be identical on 
the server and the system/host definition. You can create an iSCSI host definition without 
the use of a CHAP.
Important: If you change the name of the system after iSCSI is configured, you might 
need to reconfigure the iSCSI hosts.
System name: You can use the letters A - Z and a - z, the numbers 0 - 9, and the 
underscore (_) character. The name can be 1 - 63 characters.