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Managing lun paths, About lun path management – HP XP Array Manager Software User Manual

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2.

Choose one of the following options.

• For HP XP7 storage systems:

Select Ports/Host Groups.

• For other available storage systems:

From the Actions list in the application pane, select Element Manager. Refer to the document-
ation for the native management tool for your storage system.

3.

In the Ports/Host Groups window, select the Ports tab.

4.

Select the desired port.

5.

Click Edit Ports.

6.

Select a check box of Fabric, and select ON if you set the fabric switch. If you do not set the
fabric switch, select OFF.

7.

Click Finish.

8.

In the Confirm window, confirm the settings, in Task Name type a unique name for this task or
accept the default, and then click Apply.

If Go to tasks window for status is checked, the Tasks window opens.

Related topics

Enabling LUN security on a port

, page 158

Managing LUN Paths

This module describes path management; how to specify LUN paths, edit host mode and host mode
options, and how to specify LUN paths after replacing or exchanging a host bus adapter.

About LUN path management

When you allocate a volume to a host, HP XP7 Command View Advanced Edition allows you to
assign or edit LUN paths between one or more volumes and one or more hosts.

LUN paths provide volume access for the host by pairing storage ports and host ports. For example,
one or more storage ports can be mapped to one or more host ports.

After volumes have been allocated to a host, you can edit existing LUN path information to add new
paths or delete existing paths from a list of allocated volumes in the storage systems tree, hosts tree,
logical groups tree, and from a list of volumes returned from a search.

To set a new LUN path between a specific volume and a host , perform the allocate volume operation,
and to delete all the LUN path settings between a specific volume and a host , perform the unallocate
volume operation. In contrast, in LUN path editing, you can change the number of LUN paths and
the connection-destination ports according to operations. In particular, edit LUN paths to achieve the
following:

Improvement of I/O performance
If the usage frequency of an application increases, you can add LUN paths to increase the data
transmission speed and improve the I/O performance. If the usage frequency decreases, you can
delete the LUN paths.

Enhancements to system redundancy

Provisioning storage

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