Table 12 Status of the Mapping Paths in the Mapping Path Information Dialog Box (continued)

Displayed Item

Description

External device

The setting of the external storage system has been changed. For example, the

setting changed

path definition was deleted, or the external storage system itself was replaced

 

by another device.

 

 

LDEV size reduced

The setting of the volume capacity of the external storage system has been

 

changed (the volume capacity was reduced).

 

 

Not ready

The reply from the external storage system was NOT READY.

 

 

Illegal request

The reply from the external storage system was ILLEGAL REQUEST.

 

 

Command aborted

The reply from the external storage system was ABORTED COMMAND.

 

 

Busy

The external storage system is busy.

 

 

LDEV reserved

The external storage system is reserved.

 

 

Response error

The external storage system is blocked due to an abnormal reply.

 

 

Initiator port

The port attribute of the external storage system has been changed to the initiator

 

port.

 

 

Unknown port

The port attribute of the external storage system is unknown.

 

 

Cannot detect port

The path has been removed or the port of the external storage system cannot be

 

found.

 

 

Internal error

The program error occurred or there is a logical contradiction.

 

 

Timeout

Processing was retried because an abnormal reply was returned, however, the

 

processing has timed out.

 

 

Passive

The port of the external storage system is not active. The port status is normal but

 

the port is not used for I/O.

 

 

Standby

The port of the external storage system is standing by. The port status is normal

 

but cannot receive I/O.

 

 

Target error

Port failures, such as controller blockade, are detected on the external storage

 

system side.

 

 

Checking

The process of checking the mapping path status is in progress.

 

 

Disconnect

Connection to the external storage system or the external volume is intentionally

 

stopped using the Disconnect Subsystem command or the Disconnect Volume

 

command.

 

 

Unavailable

The reply from the external storage system was Unavailable. The external storage

 

system demands to change the connected port. Once the status becomes

 

Unavailable, the primary path is changed to the alternate path that is in the

 

Standby status. When the primary path changes, the status of the path becomes

 

Normal.

 

 

Backoff

The reply from the external storage system was Backoff. The status of the path is

 

waiting for recovery because a temporary error has occurred in the volume of

 

the external storage system. Even if the status of the primary path becomes this

 

status, the primary path is not changed to the alternate path immediately. After

 

the error recovery, the status becomes Normal. If the status cannot be recovered

 

from the error, the path status is changed to the other status.

Device check error An external volume is mapped, but you cannot access the volume in the external storage system.

Medium error

The volume in the external storage system becomes inaccessible.

Checking the External Volume Details 87