HP XP Racks User Manual
Page 72
The following table lists the general errors that can occur and the corrective action to take for each
error.
Corrective action
Error
The RWC computer hangs, or ESAM does
not function properly.
•
Make sure that the problem is not being caused by the RWC computer
or Ethernet hardware or software. Restart the RWC computer—this does
not affect storage system operations.
•
Make sure that ESAM requirements and restrictions are met.
•
Make sure that the primary and secondary storage systems are powered
on and fully operational (NVS, cache).
•
Check all input values and parameters to make sure that you entered
the correct information in RWC (for example, secondary storage system
S/N, path parameters, P-VOL and S-VOL IDs).
•
If you are using Performance Monitor, refrain from using it.
Please call the HP Support Center for assistance.
An initiator channel-enable LED indicator
(on the P9500 control panel) is off or
flashing.
Make sure the correct CU is selected.
The status of the pairs and/or data paths
are not shown correctly.
Resolve the error and then try the operation again.
An ESAM error message appears on the
RWC computer.
Check the path status on the RCU Status dialog box and resolve the error.
The data path status is not Normal.
For more information, see the HP XP P9000 Continuous Access Synchronous
User Guide.
The primary or secondary storage system issues a SIM when a failure occurs
in the quorum disk. After checking the SIM, review
Quorum disk failure
, and specifically, see
“Recovery from quorum disk failure”
.
Paircreate or pairresync operation resulted
in a timeout error.
•
If the timeout error was caused by a hardware failure, a SIM is
generated. Check the SIM, then call the HP Support Center. After you
have corrected the problem, retry the operation.
•
If no SIM is generated, wait 5 or 6 minutes, then check the pair status.
If the status is changed to PAIR, the operation completed after the timeout.
If pair status did not change to PAIR, heavy workload might have
prevented the operation from being completed. In this case, retry when
the storage system has a lighter workload.
•
If a communication error between the RWC computer and SVP occurs,
correct the error.
For more information about correcting error between the RWC computer
and SVP, see the HP XP P9000 Remote Web Console User Guide.
See
“Recovery of data stored only in cache memory” (page 76)
.
There is a pinned track on an ESAM
volume or the quorum disk.
To downgrade the firmware to a version that does not support ESAM,
complete the steps described in
“Planned outages for system components”
, and then perform the downgrade.
Cannot downgrade the firmware.
When the storage system has a heavy workload, the multipath software
turns the P-VOL offline. This does not mean that there is a failure, it is an
expected occurrence.
Though no failure occurred, the P-VOL is
offline, or host I/O switched to the S-VOL.
You can reduce the possibility of this happening by adding additional parity
groups, cache memory, and/or disk adapters.
However, first make certain that no failure has occurred on the primary or
secondary storage system, quorum disk, the host, or with cabling.
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Troubleshooting