HP STORAGEWORKS XP24000 - Manual (Page 11)

Figure 2 Security Example 2
If no ports are registered in a host group, hosts in the host group can access volumes via ports to
which the hosts are connected.
This manual uses the term port-level security, which is a security policy for enabling hosts to access
volumes only via ports registered in host groups and thus prohibiting hosts to access the volumes via
other ports.
CAUTION:
Before you apply security, you should confirm what hosts are performing I/O operations on volumes
in access groups. If any hosts perform I/O operations on volumes in access groups that the hosts do
not belong to, you will need to stop the I/O operations before you apply security. For example, if
you attempt to apply security settings illustrated in
Figure 2 , an error occurs and the attempt fails if
host4 and host5 are performing I/O operations on ldev1. To apply the security settings, you will need
to ensure that
host4 and host5 are not performing I/O operations on ldev1.
Prohibiting All Hosts from Accessing Volumes
To prevent all the mainframe hosts from accessing volumes, you must register the volumes in a pool
group (Note that you do not need to register hosts in pool groups). For example, if you register two
XP24000/XP20000 Volume Security User's Guide 11