General Troubleshooting - Hitachi G1000 User Manual

General troubleshooting

The HCS computer stops, or
global-active device does not
operate properly.
The LED on the VSP G1000 control
panel that indicates that the
channel of the initiator is available
is off or blinking.
GAD error messages are displayed
on the HCS computer.
The status of a path to the remote
storage system is abnormal.
A timeout error occurred while
creating a pair or resynchronizing a
pair.
A GAD volume has pinned tracks.
The monitoring switch is enabled,
but the monitoring data is not
updated.
9-2
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
Problem
Troubleshooting
Recommended action
• Verify that there are no problems with the HCS
computer, with the Ethernet connection, or with
the software products, and then restart the
HCS computer. Restarting the HCS computer
does not affect the GAD operations that are
currently running.
• Confirm that all GAD requirements and
restrictions (such as LU types) are met.
• Confirm that the storage systems of the
primary site and secondary site are powered on
and that their functions are fully enabled.
• Confirm that all values and parameters (such
as serial number and ID of the remote storage
system, path parameter, IDs of the primary
volume and secondary volume) were entered
correctly.
Contact Hitachi Data Systems customer support.
Correct the error, and then re-execute the GAD
operation.
Check the status of the paths in the Remote
Connections window, and make the required
corrections.
• If a timeout occurred due to a hardware error,
a SIM is generated. Contact Hitachi Data
Systems customer support, and after solving
the problem, re-execute the GAD operation.
• Large workload: If a SIM is not generated, wait
for 5 to 6 minutes, and then check the status of
the pair you want to create or resynchronize. If
the pair status correctly changed, the failed
operation completed after the timeout error
message was displayed. If the pair status did
not change as anticipated, the GAD operation
cannot complete due to the large workload. In
this case, re-execute the GAD operation when
the workload of the storage system is smaller.
• If a communication error between HCS and the
SVP occurred, see Hitachi Command Suite User
Guide.
Recover the pinned track volume.
• The monitoring data might not be updated
because the time setting of SVP was changed.
Disable the monitoring switch, and then enable
it again. For details about the monitoring
switch, see Hitachi Virtual Storage Platform
G1000 Performance Guide.