HP XP Array Manager Software - Manual (Page 18)

Figure 3 Disabling LUN Security
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 Figure 1 on page 16). Note : 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 “
Using LUN Security ” on page 80.
Configuring LUs for Use by RAID Manager
System administrators can enter RAID Manager commands from open-system hosts to perform Continuous
Access and HP StorageWorks 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 “
Configuring the Storage System for Using RAID Manager ” on page 81.
Note: You cannot use the following volumes as command devices:
• Volumes that do not have Read/Write access attribute
• Volumes reserved by Auto LUN
• Continuous Access volumes
• Business Copy volumes
• Virtual volumes
18 About LUN Manager Operations