Troubleshooting volume discovery – HP XP P9500 Storage User Manual

Page 64

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Table 6 Mapping path statuses and required actions (continued)

Action

Description

Status

Check the condition of the connection (for
example, cables, switches) to the external

The port attribute of the external storage system is
unknown.

Unknown port

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

Check the condition of the connection to the
external storage system. If you cannot restore
the path, call HP Technical Support.

The path has been removed or the port of the
external storage system cannot be found. There is
a problem with connection to the external storage
system. The following are possible causes:

Cannot detect port

The fibre cable is not physically connected in
the proper way.

The setting of the topology does not match
between the external port and the target port.

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

If the external storage system is connected
through switches, the settings for the switches
may not be appropriate.

Call HP Technical Support.

The program error occurred. Or there is a logical
contradiction.

Internal error

Check the condition of the connection (for
example, cables, switches) to the external

The processing was retried because the abnormal
reply (Response) was returned, however, the
processing has been stopped by timeout.

Timeout

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

Check the status of the volume in the external
storage system and recover the volume if it is
not normal.

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

Device check error

Format the volume if it is not formatted.

Check the status of the volume in the external
storage system and recover the volume if it is
not normal.

The volume in the external storage system becomes
inaccessible.

Medium error

Format the volume if it is not formatted.

Troubleshooting volume discovery

The following table lists the causes of port discovery failure or volume discovery failure, and actions
required to troubleshoot the failure.

Table 7 Causes of volume discovery failure and required actions

Action

Cause

Connect the External port of the local storage system and the port
of the external storage system.

Port of the local storage system and port of the
external storage system are not connected.

Connect the cable to the correct port of the switch. Or change the
port status of the switch into the normal status.

Cable for the switch is not connected
appropriately. Or the port of the switch is
blocked.

Make sure the zoning configuration of the switch is correct so that
the External port of the local storage system can communicate with
the port of the external storage system.

Zoning for the switch is not set appropriately.

Connect the external storage system to the External port of the local
storage system. Or change the connected port to External.

External storage system is not connected to the
port set to External of the local storage system.

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Troubleshooting

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