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The following table shows path statuses in theView External LUN Propertieswindow. Descriptions and corrective actions you can take are provided.

Also, seeTroubleshooting path errors for specific storage systems (page 57). Corrective action Description

Status

Call the HP Technical Support. The path status cannot be determined.

Unknown

The port is blocked because of microcode replacement, package replacement, or other The external port is blocked.

Blockade

factor. Check the status of the local storage system. If you cannot restore the path, call the HP Technical Support.

The port of the external system is recognized. See your device manufacturer's documentation An external system setting has changed. For

example, the path definition was deleted, or the External device

setting changed

to verify that the settings on the volumes in question have not changed.

external system itself was replaced by another device.

Check the external volume capacity. Delete the external volume, and then remap to it. The external volume capacity was reduced.

LDEV size reduced

The path cannot be used to access the external system. Check the status of the external system. The reply of the external system was NOTREADY.

Either the drive is spinning up or the system is being formatted.

Not ready

If you cannot restore the path, call the HP Technical Support.

Corrective action Description

Status

The external system port is recognized. Check the external system settings. If you cannot restore the path, call the HP Technical Support. The reply of the external system was

ILLEGALREQUEST. The command cannot be executed to the external system. Data protection may be set on the external system.

Illegal request

The external system port is recognized. Check external system settings and the physical The reply of the external system was

ABORTEDCOMMAND. An error may have occurred on the external system side. Command aborted

connection to the external system (cables and switches). If you cannot restore the path, call the HP Technical Support.

The external system port is recognized. Check whether the external system configuration The external system is in the BUSY status.

Busy

causes excessive load on the system. If you cannot restore the path, call the HP Technical Support.

Remove the Reserve status on the external system.

The external system is in Reserve status. The system cannot be accessed.

LDEV reserved

The external system port is recognized. Check the setting and status of the external system. If The external system is in blocked status caused by

an abnormal reply (Response). You may not be Response error

you cannot restore the path, call the HP Technical Support.

able to access the system, or data protection may be set.

Set the port attribute of the external system to “target”. If you cannot restore the path, call the HP Technical Support.

The port attribute of the external system has been changed to “initiator”.

Initiator port

Reconnect the external volume or system. When status is Normal, disconnect the volume The writing of data from cache memory to the

external volume failed. Destage Failed

or system. You may need to try this multiple times. If the problem remains, call the HP Technical Support.

The external system port is recognized. Check external system settings and the physical The port attribute of the external system is

unknown. Unknown port

connection to the external system (cables and switches). If you cannot restore the path, call the HP Technical Support.

If you cannot restore the path after checking the possible causes, call the HP Technical Support.

The external path has been removed or the external system port cannot be found. Possible causes are:

Cannot detect port

• The fibre cable is not properly connected. • The topology does not match between the

external and target ports.

• Because security is set on the port, the external system cannot be recognized from the local system.

• If the external system is connected through switches, the switch setting may be incorrect.

Call the HP Technical Support. A program error occurred, or there is a logical

contradiction. Internal error

The external system port is recognized. Check external system settings and the physical Processing was retried because of an abnormal

reply; however, processing was stopped because of timeout.

Timeout

connection to the external system (cables and switches). If you cannot restore the path, call the HP Technical Support.

Check the volume’s status in the external system and take any necessary corrective action. An external volume is mapped, but you cannot

access the volume in the external system. Device check error

Corrective action Description

Status

Format the volume if it is not formatted. Check the volume’s status in the external system and take any necessary corrective action. The external volume has become inaccessible.

Medium error

Format the volume if it is not formatted.

Troubleshooting path errors for specific storage systems

Storage system-specific recovery information is provided for the following errors: • External device setting changed

• Illegal request

• Cannot detect port