HP XP P9500 Storage - Manual (Page 58)

Table 9 General ESAM troubleshooting (continued)
Corrective action Error
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 HP Technical Support. When the
problem is corrected, 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 Remote Web Console computer
and SVP occurs, consult the HP P9000 Remote Web Console User Guide
for corrective action.
See “Recovery of a pinned track ” (page 60) . There is a pinned track on an ESAM
volume or the quorum disk.
To downgrade the firmware to the version that does not support ESAM,
perform the operations described in the
“Powering the system off and on”
(page 44) , 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 system, quorum disk, the host, or with cabling.
Troubleshooting suspended ESAM pairs
The following table provides troubleshooting information for suspended ESAM pairs.
Table 10 Troubleshooting suspended ESAM pairs
Corrective action Description Applies to Suspend type
Clear the error condition at the secondary
system or S-VOL, then resynchronize the pair
from the primary system. The primary system detected an error
condition at the secondary system
which caused the primary system to P-VOL
S-VOL
PSUE,
by RCU
suspend the pair. The S-VOL suspend
type is S-VOL Failure.
If the cause is 1, proceed as follows: One of the following applies to this
suspend type. In both cases, the P-VOL
S-VOL
PSUE,
S-VOL Failure •
Check data path status on the secondary
system Status dialog box. Clear any errors.
suspend type for the S-VOL is usually
S-VOL Failure.
• Clear any error conditions on the
secondary system or S-VOL.
1. The primary system detected an
error during communication with
•
After errors are cleared, resynchronize
from the primary system. the secondary system, or an I/O
error during update copy.
If the cause is 2, proceed as follows:
2. The primary system detected a
failure in the quorum disk.
• Recover the quorum disk failure by
following the recovery procedure defined
by the external storage system.
• If SIMs related to External Storage are
issued, call HP Technical Support and
follow the recovery procedure defined by
the HP P9000 External Storage for Open
and Mainframe Systems User Guide. After
58 Troubleshooting