In the Authentication window, click 
to change to Modify mode.
Registering host user information
On a host group that performs authentication of hosts, register user information of all hosts that you allow to connect.
You should register user information of all the hosts to be connected to a host group that performs authentication of hosts. To allow a specific host to connect to such a host group without authentication, configure the host group and the host as follows.
Hitachi Device Manager - Storage Navigator secondary windows must be defined for use in advance. When you select Modify from the Authentication secondary window to register host user information, other users or programs are prevented from changing storage system settings. When you close the secondary window, Modify mode is released. For more information on Hitachi Device Manager - Storage Navigator secondary windows and Modify mode, see the System Administrator Guide.
On the host: It does not matter if you configure the host for authentication by ports with CHAP, or not.
Perform one of following to display the Authentication window.
For Hitachi Command Suite:
On the Resource tab, expand the Storage Systems tree. Right click the target storage system, then select Other Function.
Click Actions > Ports/Host Groups to open the Authentication window.
For Storage Navigator:
Click Actions > Ports/Host Groups > Fibre then > Authentication to open the Authentication window.
In the Authentication window, click to change to Modify mode.
In the Port tree, select a port or host group on which you want to register user information of a host.
The user information of hosts currently registered on the selected port or host group appears in the Authentication Information (Host) list below the Authentication Information (Target) list.
You can register user information of a host even if the port status is 
. In this case, however, the registered user information of a host is ignored.
Right-click any point in the Authentication Information (Host) list and select Add New User Information. The Add New User Information (Host) dialog box opens.
In this dialog box, specify the following user information of the host you want to allow connection.
Group Name: Specify the group name of host bus adapter. Select one from the list. In the list, all the group names of host bus adapters connected to the selected port by the cable appear.
User Name: Specify the WWN of the host bus adapter with up to 16 characters. You can use hexadecimal characters in a user name. User names are not case-sensitive.
Secret: Specify the secret (that is, a password used in CHAP authentication) between 12 to 32 characters.
You can use alphanumeric characters, spaces, and the following symbols in a secret: . - + @ _ = : [ ] , ~
Re-enter Secret: Specify the secret, again, for confirmation.
Protocol: Specify the protocol used in the user authentication. This protocol is fixed to CHAP.
Click OK to close the Add New User Information (Host) dialog box. The specified user information of the host is added in blue in the Authentication Information (Host) list of the Authentication window.
Click Apply in the Authentication window. A message appears asking whether to apply the settings to the storage system.
Click OK to close the message. The settings are applied to the storage system.