HP StorageWorks XP128 User Manual page 26

Each case in Figure 8
• When connecting via a port that performs host authentication:
• If the user information of the host is registered on the port and host authentication is enabled (Case
A): The port authenticates the user information sent from the host. If the host authentication is
successful, then:
If the host is configured for mutual authentication, processing continues with port authentication. If
the host is not configured for port authentication using CHAP, the authentication fails and the host
cannot connect to the disk array.
If the host is not configured for mutual authentication, the host connects to the disk array.
• If the user information of the host is registered on the port but host authentication is disabled (Case
B): The port does not perform host authentication. Irrespective of whether the host is configured for
port authentication using CHAP, the host connects to the disk array.
CAUTION:
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.
• If the user information of the host is not registered on the port (Case C): Irrespective of the setting on
the host, the port performs host authentication and it fails. The host cannot connect to the disk array.
• When connecting via a port that does not perform host authentication (Case D): The host can connect
to the disk array without host authentication irrespective of whether the host is configured for port
authentication using CHAP. In this case, registering the user information of the host on the port is not
required.
CAUTION:
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.
26 LUN Manager for the XP128/XP1024
is explained below.
If a host uses Microsoft iSCSI Initiator and is configured for port authentication using
If a host uses Microsoft iSCSI Initiator and is configured for port authentication using