Number of External Storage Systems

Number of external storage systems in which mapped external volumes reside.

Number of External Paths

Number of external paths.

Number of External Volumes

Number of mapped external volumes.

External Volume Capacity

Total capacity of mapped external volumes.

Vendor / Model / Serial Number

Identifying information for the selected external storage system.

When the link is clicked, more information for the system is shown.

Status

Any of the following statuses can display for the external system.

• Normal: There are no problems, the system is usable.

• Disconnect: The external system or one of its mapped volumes has been intentionally disconnected.

• Checking: The system is checking the mapping path status.

• Unknown: The status of the mapping path is not known.

• Cache Destage: Writing of data from cache memory to the volume is in progress.

• Warning: There are mapping paths whose status is not normal. You can check their status in the View External LUN Properties window.

• Blockade: The mapping path is blocked.

• Destage Failed: The writing of data from cache memory to the volume failed.

Number of External Path Groups

Number of external path groups in the external system.

Add External Volumes

When clicked, launches the Add External Volumes window.

Disconnect External Storage Systems

When clicked, launches the Disconnect External Storage Systems window.

Reconnect External Storage Systems

When clicked, launches the Reconnect External Storage Systems window.

Edit Policies*

When clicked, launches the Edit Policies window.

Export*

When clicked, allows you to save table information to a file.

* Appears when you click More Actions.

Port ID

Port connected to the external storage system of the local storage system.

External WWN

External system port identification number.

Vendor / Model / Serial Number

Identifying information for the external system.

Status

Status of external paths.

• Normal: There are no problems, the system is usable.

• Disconnect: The path has been intentionally disconnected.

• Checking: The system is checking the external path status.

• Unknown: The status of the external path is not known.

• Warning: There are external paths whose status is not normal. You can check their status in the View External LUN Properties window.

• Blockade: The external path is blocked.

QDepth

Number of Read/Write commands that can be queued to the external volume. 8 is set by default.

When Load Balance Mode is Extended Round-robin and the I/Os issued to the external volume are sequential, the number of Read/Write commands that can be queued at one time is the total of the QDepth values of all the external paths.

I/O Timeout (sec.)

Number of seconds that should pass before I/O to the external volume times out. 15 seconds is the default.

Path Blockade Watch(sec.)

Time that will elapse from the time that a path goes down to the time when the external volume is blocked. 10 seconds is the default.

Disconnect External Paths

When clicked, launches the Disconnect External Paths window.

Reconnect External Paths

When clicked, launches the Reconnect External Paths window.

Edit External WWNs

When clicked, launches the Edit External WWNs window.

Edit Policies*

When clicked, launches the Edit Policies window.

Export*

When clicked, allows you to save table information to a file.

* Appears when you click More Actions.