Troubleshooting suspended pairs – HP XP P9500 Storage User Manual
Page 106
Troubleshooting suspended pairs
Troubleshooting information for user-suspended and system-suspended pairs is provided in the
following two tables.
Hardware failures affecting the cache memory and the shared memory of the primary or secondary
system may also cause the pairs to be suspended.
Table 17 Suspended pair troubleshooting
Corrective action
Description
Applies to
Suspend type
Clear the error condition at the secondary
storage system or S-VOL. If you need to
The primary storage system suspended a
pair because the primary storage system
P-VOL
PSUE, by
RCU
access the S-VOL, release the pair from the
detected an error condition at the
primary storage system. If data in the S-VOL
secondary storage system. The suspend
type for the S-VOL is by MCU.
has been changed, release the pair from the
primary storage system and then re create
the pair by using the Paircreate dialog box.
If data in the S-VOL has not been changed,
restore the pair from the primary storage
system.
Check the path status on the DKC Status
dialog box (see
The primary storage system detected an
error during communication with the
P-VOL
PSUE, S-VOL
Failure
). Clear any error
secondary storage system or detected an
conditions at the secondary storage system
I/O error during update copy. In this
and the S-VOL. If you need to access the
case, the suspend type for the S-VOL is
usually by MCU.
S-VOL, release the pair from the secondary
storage system. If data in the S-VOL has
been changed, release the pair from the
primary storage system and then re create
the pair by using the Paircreate dialog box.
If data in the S-VOL has not been changed,
restore the pair from the primary storage
system.
Restore the pair (pairresync) from the
primary storage system. The primary storage
The primary storage system could not find
valid control information in its nonvolatile
P-VOL, S-VOL
PSUE, MCU
IMPL
system performs an initial copy operation in
memory during the IMPL procedure. This
response to the pairresync request, so that
the entire P-VOL is copied to the S-VOL.
error occurs only if the primary storage
system is without power for more than 48
hours (power failure and fully discharged
batteries).
Release the pair from the primary storage
system. Clear all error conditions at the
The primary storage system suspended
this pair during the initial copy operation.
P-VOL, S-VOL
PSUE, Initial
Copy Failed
primary storage system, P-VOL, secondary
The data on the S-VOL is not identical to
the data on the P-VOL.
storage system, and S-VOL. Restart the initial
copy operation by using the Paircreate
dialog box.
None. The primary storage system
automatically restores these Cnt Ac-J pairs
The primary storage system suspended all
Cnt Ac-J pairs because the primary
storage system was powered off.
S-VOL
PSUE, MCU
P/S OFF
when the primary storage system is powered
on.
Table 18 Resolving pair suspension
Recovery procedure
SIM
Causes of suspension
Classification
According to SIM, remove the hardware
blockade or failure.
DC0x
DC1x
DC2x
Hardware redundancy has been lost due
to some blockade condition. As a result,
one of the following could not complete:
Primary or
secondary system
hardware
Restore the failed volume pairs (Pairresync) .
primary-secondary system
If a failure occurs during execution of the
RAID Manager horctakeover command,
communication, journal creation, copy
operation, restore operation, staging
process, or de-staging process.
secondary volumes in SSWS pair status may
remain in the master journal . If these volumes
106 Troubleshooting