Enabling LUN security

In the following example, LUN security is enabled on port CL1-A. The two hosts in the hg-lnx host group can access only three LUs (00:00:00, 00:00:01, and 00:00:02). The two hosts in the hg-hpux host group can access only two LUs (00:02:01 and 00:02:02). The two hosts in the hg-solar host group can access only two LUs (00:01:05 and 00:01:06).

Disabling LUN security

Typically, you do not need to disable LUN security on ports. For example, if LUN security is disabled on a port, the connected hosts can access only the LUs associated with host group 0, and cannot access LUs associated with any other host group.

Host group 0 is the only host group reserved, by default, for each port. If you use the LUN Manager window to view a list of host groups in a port, host group 0, indicated by the number 00, usually appears at the top of the list.

The default name of host group 0 consists of the port name, a hyphen, and the number 00. For example, the default name of host group 0 for port 1A is 1A-G00. However, you can change the default name of the host group 0.

LUN security is disabled, by default, on each port. When you configure your storage system, you must enable LUN security on each port to which hosts are connected.