HP Storage Essentials Enterprise Edition Software - Manual (Page 51)

User Guide 37
In the HP StorageWorks XP array, a storage device not presented to any host or host port is
considered a free or available device, and will be available to be used whenever new storage is
required. To protect the data on a storage device that is not currently active in the Adaptive
Computing environment, the HP Storage Essentials SRM SAP ACC Integration software presents
all Adaptive Computing storage devices to a reserved host group, to ensure that these devices
will always have at least one presentation to a port in the array. The port does not have to be
connected to any hosts, and the host group should not provide access to any host either.
NOTE: If a reserve port already exists for this HP StorageWorks XP array, the following
dialog box is not displayed. Go to Step 13.
Figure 19 A reserved group entry
The port number selected for the reserved group should be a Target or RCU Target port with
security enabled. The Application Integration Software creates a host group with default name
SAP ACC Reserved on this port and assign all the physical devices used in the Adaptive
Computing environment to this group.
You can re-name the host group name used for the reserve port, either when defining the port in
this dialog box, or in the Program Properties tab on the main screen.
NOTE: The HP StorageWorks XP array has a limit of the number of physical devices that
can be assigned per host group and per port. This limit is dependant on the array version
and can be between 1024 and 2048 devices. For this reason, the current version of
Application Integration Software is limited to the number of devices it can managed per
storage array.
12. Click Next.
The Confirmation screen is displayed. This page does not let you modify the reserved group port
number or name. To modify information, click Cancel to restart the process.