HP StorageWorks XP Remote Web Console Software - Manual (Page 25)

LUN Configuration and Security Manager XP user guide for the XP1024/XP128 25
CAUTION: If a host uses Microsoft iSCSI Initiator and is configured for port authentication using
CHAP, host authentication will fail. To allow such a host to connect to the port without
authentication, do not configure it for port authentication using CHAP.
NOTE: You must register user information of all the hosts to be connected to a port on which host
authentication is performed. If you want to allow a specific host to connect to a port without
authentication, configure the port and the host as follows:
• On the port: Register the user information of the host you want to allow to connect without
authentication, then clear the Enable authentication check box.
• On the host: It does not matter whether you configure the host for port authentication using CHAP. If
the host uses Microsoft iSCSI Initiator, do not configure the host for port authentication using CHAP.
Figure 8 provides an overview of user authentication. In this figure, iSCSI names of host bus adapters
(HBAs) are abbreviated as a, b, and so on.
Figure 8 Overview of user authentication
In this example, port 1 performs host authentication while port 2 does not.
The user information of Host A is registered on port 1, and the authentication setting is enabled. If the host
authentication is successful, Host A can connect to the disk array (or the processing continues with port
authentication). In order for host authentication to succeed, Host A must be configured for port
authentication using CHAP.
The user information of Host B is also registered on port 1, but the authentication setting is disabled, and
Host B can connect to the disk array without authentication. If Host B uses Microsoft iSCSI Initiator, it can
connect to the disk array only when Host B is not configured for port authentication using CHAP.