Troubleshooting 8-5 Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Error Corrective Action
Unavailabl
e
Status: The reply of 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 has been changed, the status of the path becomes Normal.
Reaction: If the path is not changed over properly, check the status
of the external storage system. If you cannot restore the path, call
the Hitachi Data Systems Support Center.
Backoff Status: The reply of 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.
Reaction: If the status cannot be recovered from the error, the path
status is changed to another status. React to the new path status
after the status is changed. If you cannot restore the path, call the
Hitachi Data Systems Support Center.
The volume in
the external
storage system
cannot be found
even after the
Port Discovery or
the Volume
Discovery was
performed.
Remove the error and retry the operation. The reason for the error could be as
follows:
Storage Navigator is not in the Modify mode.
Port of the local storage system and the port of the external storage system are
not connected.
Port security is set on the external storage system.
The device in the external storage system is not in the Normal status.
External storage system is not connected to the port set to External of the local
storage system.
The capacity is not enough (capacity is less than about 38 MB (77,760 blocks) .
The cable for the switch is not connected appropriately.
The zoning for the switch is not set appropriately.
If none of the above corresponds to the actual factor, disconnect the cable between
the local storage system and the external storage system once and connect it
appropriately again. After 30 seconds, retry the operation.
The external
volume is
blocked.
Remove the error and retry the operation.
The reason for the error could be as follows:
All the set paths are blocked (paths are not connected).
The attribute of external volume is not set to Read/ Write attribute.
The external volume is blocked by error.
The Check
Paths &
Restore
Volume
command is
executed and
you have waited
more than 10
minutes, but the
status of the
device does not
change from
Checking.
Click Refresh ( ) command on the Storage Navigator main window while the
Status: Enable button is displayed. If the device status remains as Checking
even though you have updated the information, execute the Check Paths &
Restore Volume command again.
If the same problem persists despite retrying, call the Hitachi Data Systems
Support Center.