HP StorageWorks XP Remote Web Console Software - Manual (Page 10)

Usually, you do not need to disable LUN security on ports. If LUN security is disabled on a port,
the connected hosts will only be able to access LUs associated with host group 0 (zero), and will
be unable to access LUs associated with any other host group.
Figure 3 Disabling LUN Security
The host group 0 is the only host group reserved for each port by default. If you use the LUN
Manager window to view a list of host groups in a port, host group 0 usually appears at the top
of the list and is indicated by the number 00 (see
(page 8) ).
By default, the name of host group 0 consists of the port name, a hyphen, and the number 00. For
example, host group 0 for port 1A is named 1A-G00 by default. Note that you can change the
name of host group 0.
By default, LUN security is disabled on each port. When you configure your system, you must
enable LUN security on each port to which hosts are connected.
For details on how to apply LUN security, see (page 81) .
Configuring LUs for Use by RAID Manager
System administrators can enter RAID Manager commands from open-system hosts to perform XP
Continuous Access and HP XP Business Copy Software operations on logical devices. For example,
administrators can enter RAID Manager commands to create or split pairs. To allow the
administrators to use RAID Manager commands, you must ensure that at least one logical device
is used as a command device. A command device receives RAID Manager commands entered
from open-system hosts. When the administrator enters an RAID Manager command from an
open-system host, the RAID Manager command is transferred via the command device to the target
logical device.
To protect a logical device from RAID Manager commands, you must apply command device
security to the logical device. If command device security is applied to a logical device, the device
will not be affected by RAID Manager commands even when commands are transferred via a
command device to that device.
For details, see (page 82) .
You cannot use the following volumes as command devices:
•
Volumes that do not have Read/Write access attribute
•
Volumes reserved by XP Auto LUN. For more information, see HP XP24000/XP20000 Auto
LUN Software User Guide.
•
XP Continuous Access volumes
•
XP Business Copy volumes
10 About LUN Manager Operations