External paths tab – HP XP P9500 Storage User Manual

Page 101

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Description

Item

Path mode of the external path.

Path Mode

Single: Only the external path with the highest priority (primary path) is used
to execute the I/O to the external volume. When an error occurs in the primary
path, the path with the second highest priority is used.

Multi: All of the configured external paths are used at the same time. The
multiple paths are used to execute the I/Os to the external volume distributing
the work load.

APLB: All of the configured external paths are used at the same time. The
multiple paths are used to execute the I/Os to the external volume distributing
the work load. However, the paths are not used when the paths are connected
to ports in the Passive status.

Indicates whether the write data from the host to the external storage system is
propagated synchronously (Disable) or asynchronously (Enable).

Cache Mode

Indicates whether the writing operation to the cache memory is stopped (Enable)
or continued (Disable) when the writing operation to the external volume is
impossible.

Inflow Control

Displays the Add External Volumes window.

Add External Volumes

Displays the Edit External Volumes window.

Edit External Volumes

Displays the View External LUN Properties window.

View External LUN Properties

Displays the Delete External Volumes window.

Delete External Volumes*

Displays the Disconnect External Volumes window.

Disconnect External Volumes*

Displays the Reconnect External Volumes window.

Reconnect External Volumes*

Displays the Assign Processor Blade window.

Assign MP Blade*

Displays the Edit Policies window.

Edit Policies*

Displays the window for outputting table information.

Export*

* You can see the item on the menu that appears by clicking More Actions.

External Paths tab

Description

Item

Lists the external paths according to priority.

Priority

The port number in the local storage system connecting to the external storage
system.

Port ID

Identification number of the port in the external storage system.

External WWN

Status of external paths.

Status

Normal: It is normal.

Disconnect: Connecting to the external path is intentionally stopped using the
Disconnect External Paths command.

Checking: The checking of the external path status is in progress.

Unknown: The status of the external path is unknown.

Warning: There are external paths whose status is not normal. Check the
status of the external paths in the View External LUN Properties window.

Blockade: The external path is blocked.

The number of Read/Write commands which can be issued (queued) to the
external volume at a time. The value that can be set ranges from 2 to 128.

QDepth

Top window when selecting a path group under the external storage system of External Storage

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