Specifying logical devices as command devices – HP StorageWorks XP10000 Disk Array User Manual

Page 107

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Configuring arrays for using RAID Manager XP commands

The system administrator can enter RAID Manager XP commands from open-system hosts to perform

Continuous Access XP and Business Copy XP operations on logical devices. For example, use RAID

Manager XP commands to create and split pairs. To enable the system administrator to enter RAID

Manager XP commands from open-system hosts, you must specify at least one logical device as the

command device. If desired, you must also apply command device security to other logical devices in

the array.

NOTE:

If an array is divided into SLPRs and you want to prevent RAID Manager XP commands from affecting

multiple SLPRs, you must apply command device security to the logical volumes.

Specifying logical devices as command devices

To enable the system administrator to execute RAID Manager XP commands from an open-system host,

you must select at least one logical device that will not be manipulated by Continuous Access XP or

Business Copy XP, and then specify the devices as the command devices. When a RAID Manager XP

command is issued from a host, the command device receives the command. The command device

transfers the command to another logical device. Then, the command performs a Continuous Access XP

or Business Copy XP operation on that logical device.

1.

Start LUN Manager. The LUN Manager pane (

Figure 14

or

Figure 15

) appears.

2.

In the LU Path or LDEV table, right-click the logical device.

NOTE:

• If nothing appears in the LU Path table, select a host group

in the tree.

• The

and

icons indicate command devices.

• The

icon does not indicate any logical device.

3.

Select Command Device: Disable->Enable. A confirmation message appears.

4.

Click Yes.

5.

Click Apply. A confirmation message appears.

6.

Click OK. Settings are applied to the array.

NOTE:

If you do not want to use a device as a command device any longer, right-click the command device (
or

) in the LU Path or LDEV table, and select Command Device: Enable -> Disable.

Protecting logical devices from RAID Manager XP commands

To protect logical volumes from RAID Manager XP commands, you must apply command device security

to the logical volumes. If command device security is applied to a logical device, the logical device is not

affected by RAID Manager XP commands issued via command devices from hosts.

1.

Start LUN Manager. The LUN Manager pane (

Figure 14

or

Figure 15

) appears.

2.

In the LU Path or LDEV table, right-click the command device.

HP StorageWorks LUN Configuration and Security Manager XP user guide for the

XP12000/XP10000/SVS200

107

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