Software User Manual

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Description
Port in Standard mode.
Port in Initiator/External MIX mode.
• WWN: External array port's identification number.
• LUN: LU number of the external LU.
• Priority: Priority of paths connecting to the external LU. A 1 indicates the path with the
highest priority.
• Status: Status of the path to the external LU. For information about reacting to the displayed
status, see Troubleshooting External Storage XP. Possible values:
• Normal:Pathisnormal.
• Unknown:Pathstatusisunknown.
• Blockade:Pathisblocked.
• External device setting changed: External array's setting changed. For example, the path
definition was deleted or the external array itself was replaced.
• LDEV size reduced: External array's volume capacity setting changed (volume capacity
was reduced).
• Not ready:ExternalarrayrepliedNOTREADY.
• Illegal request:ExternalarrayrepliedILLEGALREQUEST.
• Command aborted: External array replied ABORTEDCOMMAND.
• Busy:ExternalarraystatusisBUSY.
• LDEV reserved: External array status is Reserve.
• Response error: External array status is blocked because of an abnormal reply (Response).
• Initiator port: External array's port attribute changed to initiator port.
• RCU target port: External array's port attribute changed to RCU target.
• Unknown port: External array's port attribute is unknown.
• Cannotdetectport: Path was removed or external array port could not be found.
• Internal error: Program error occurred, or there is a logical contradiction.
• Timeout: Processing was retried because of an abnormal reply, but a timeout occurred.
• Standby: External array's port is standing by. Port status is normal, but cannot receive I/O.
• Target error: Port failures, such as controller blockade, were detected on the external
array side.
• Checking: External Storage XP is checking defined path configuration information.
• Disconnect: Connection to the external array or LU was stopped using the Disconnect
Subsystem or Disconnect Volume command.
• Unavailable: External array replied Unavailable. The external array demands to change
the connected port. After the status becomes Unavailable, the primary path changes to the
alternate path that is in the Standby status. When the primary path changes, the path
status becomes Normal.
• Backoff: External array replied Backoff. The path status is Waiting for Recovery because a
temporary error occurred in the external array's volume. Even if the primary path's status
becomes Backoff, the primary path does not change to the alternate path immediately.
After the error recovery, the status becomes Normal. If you cannot recover the status from
the error, the path status changes to the other status.
• I/O TOV:TimeovervalueforI/OtotheexternalLU
• Qdepth: Number of Read/Write commands that can be issued (queued) to an external
LU at one time
• Path Watch: Time period beginning when the connection of all paths to the external LU is
down and ending when the external LU is blocked
• Mode: How the local array manages alternate paths when defined. Possible values:
External Storage XP user guide
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