Troubleshooting external path status – HP XP Racks User Manual

Page 69

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Possible causes

Problem

The external volume is blocked.

All external paths are blocked (paths are not connected).

The external volume is not set to Read/ Write.

The external volume is blocked by an error.

When errors occur in all external paths, the local storage system
changes the status of the external volume to Blockade.

The status of the external volume is blockade.

Reconnect the volume or storage system.

If the volume’s status still does not change to Normal, restore
the path as described in the problem above, “The external path
is blocked”, and then reconnect the volume again.

A corresponding external volume was not found for the external
path with the highest priority.

"?" displays in the LUN ID (Highest Priority) column
of the Discovered External Volumes table (Add
External Volumes window).

Confirm the connection with the external system that failed during
volume discovery, correct the error, and perform the operation
again.

Confirm the connection with the external system; also confirm that
the external volume is correctly configured in the external system,
then perform the operation again.

External volume discovery was not completed
because of failure.

Click Refresh on the Remote Web Console main window. If the
status remains Checking, perform the reconnect operation again.

After reconnecting an external volume or system,
10 minutes have passed but the status has not
change from Checking.

If the problem persists after a reasonable time, call the HP Technical
Support.

Click Refresh on the Remote Web Console main window.

After disconnecting an external volume or system,
the status does not change from Cache Destage.

Note that the time required for write processing from cache to the
external volume depends on volume capacity. More time is required
for larger volumes. Processing speed is about 20 MB/s. However,
this also depends on the performance and status of the external
system.

If status does not change from Cache Destage after a reasonable
time, call the HP Technical Support.

The device status is currently changing. Wait a few minutes, and
then check the status again. When the transition of the device status

The message, "INTERVENTION REQUIRED", is
issued to the mainframe host as the device status.

has completed normally, the device can be used immediately. If
the device is blocked as a result of the status transition, see the
problem above, "The external volume is blocked".

See the problem above, "The external volume is blocked"

The message, “DEVICE ERROR", is issued to the
mainframe host as the device status.

Troubleshooting external path status

The following table shows path statuses in the View External LUN Properties window. Descriptions
and corrective actions you can take are provided.

Also, see

“Troubleshooting path errors for specific storage systems” (page 71)

.

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.

Troubleshooting external path status

69

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