HP StorageWorks XP24000 Continuous Access Software User and Reference Guide, v01 (T5278-96002, June 2007)

Table 28 Troubleshooting Suspended C ontinuous Access Pairs
Suspend
Type
Applies
to
Description Corrective Action
PSUE, by
RCU
P-VOL
The MCU detected an error condition
at
the RCU which caused the MCU to
suspend the pair. The S-VOL suspend
type is by MCU.
Clearthe errorcondition at theRCU
or
S-VOL. If you need to access the
S-VOL, split the pair (pairsplit-r) from
the MCU using the S-VOL write enable
option.
Resynchronize the pair (pairresync)
from the MCU after the error condition
is
cleared.
PSUE,
S-VOL
Failure
P-VOL
The MCU detected an error during
communications with the RCU or an
I/O error during an update copy. In
this case, the suspend type for the
S-VOL is usually by MCU.
Checkthe pathstatusonthe
RCU Status dialog box (see
“Viewing RCU Status” on page 80).
Clearany errorconditionsatthe RCU
or
S-VOL. If you need to access the
S-VOL, split the pair (pairsplit-r) from
the MCU using the S-VOL write enable
option.
Resynchronize the pair (pairresync)
from the MCU after the error condition
is
cleared.
PSUE,
MCU
IMPL
P-VOL,
S-VOL
The MCU could not find valid control
information in its nonvolatile memory
during the IMPL procedure. This error
occurs only if th e MCU is without
power for more than 48 hours (power
failure and fully discharged batteries).
Resynchronize the pair (pairresync)
from the MCU. The MCU will perform
an entire initial copy operation in
response to the pairresync request.
PSUE,
Initial Copy
Failed
P-VOL,
S-VOL
The MCU suspended this pair during
the initial copy operation. The data on
the S-VOL is not identical to the data
on
the P-VOL.
Release the pair from the MCU. Clear
all error conditions at the MCU, P-VOL,
RCU, and S-VOL. Restart the initial
copy operation using the Paircreate
dialog box.
PSUE,
MCU
P/S-OFF
S-VO
L
(As
ync)
The M
CU
suspended all Continuous
Acce
ss
Asynchronous pairs due to an
MCU
power-off.
None. The MCU will automatically
resynchronize these Continuous
Access
Asynchronous pairs during the
power-on.
PSUS,
Sidefile
Overflow
P-VOL
S-VOL
The amount of the sidefile exceeds
the specified current pending update
data rate, and the RCU data is
not
transferred within the specified
offloading timer.
Add cache memory, increase the
number of paths between the MCU
and RCU,ordecreasethe number of
Async pairs or host I/Os.
Table 29 on page 141 provides troubleshooting instructions for the Continuous Access Asynchronous
suspension conditions caused by the offloading timer async option, the group timeout options (copy
pending and RCU ready), and recordset errors. Hardware failures which affect the storage system/shared
memory of the MCU or RCU may also cause the Continuous Access Asynchronous pairs to be suspended.
140
Troubleshooting