Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

Troubleshooting 8-5
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Table 8-3 Troubleshooting Suspended TrueCopy for z/OS Pairs
Suspend
Type Applies to Description Corrective Action
M-VOL by
Operator
M-VOL The user suspended the pair from the MCU
using the M-VOL Failure option. The R-VOL
suspend type is by MCU.
Resynchronize the pair from the MCU.
R-VOL by
Operator
M-VOL,
R-VOL
The user suspended the pair from the MCU or
RCU using the R-VOL option.
Resynchronize the pair from the MCU.
by MCU R-VOL The RCU received a request from the MCU to
suspend the pair. The M-VOL suspend type is
M-VOL by Operator or R-VOL by Operator.
Resynchronize the pair from the MCU.
by RCU M-VOL The MCU detected an error condition at the RCU
which caused the MCU to suspend the pair. The
R-VOL suspend type is by MCU.
Clear the error condition at the RCU or R-
VOL. If you need to access the R-VOL,
release the pair from the RCU.
If any data on the R-VOL has changed,
release the pair from the MCU and then
restart the pair (Add Pair). If not,
resynchronize the pair from the MCU.
Delete
Pair to
RCU
M-VOL The MCU detected that the R-VOL status
changed to simplex because the user released
the pair from the RCU. The pair cannot be
resynchronized because the R-VOL does not
have the suspended status.
Release the pair from the MCU, and then
restart the pair. You should use the
Entire Volume initial copy option to
resynchronize the pair. You can use the
None initial copy option only if no data
on the M-VOL or R-VOL changed.
R-VOL
Failure
M-VOL The MCU detected an error during
communication with the RCU or an I/O error
during update copy. In this case, the suspend
type for the R-VOL is usually by MCU.
Check the path status on the RCU Status
dialog box (see Table 8-2).
Clear any error conditions at the RCU/R-
VOL. If you need to access the R-VOL,
release the pair from the RCU.
If any data on the R-VOL has changed,
release the pair from the MCU and then
restart the pair (Add Pair). If not,
resynchronize the pair from the MCU.
MCU IMPL M-VOL,
R-VOL
The MCU could not find valid control information
in its nonvolatile memory during the IMPL
procedure. This error occurs only if the MCU is
without power for more than 48 hours (power
failure and fully discharged batteries).
Resynchronize the pair from the MCU.
The MCU will perform an entire initial
copy operation in response to the
resynchronize pair request.
Initial
Copy
Failed
M-VOL,
R-VOL
The MCU suspended this pair during the initial
copy operation. The data on the R-VOL is not
identical to the data on the M-VOL. Invalid track
format can cause this suspension.
Release the pair from the MCU. Clear all
error conditions at the MCU, M-VOL,
RCU, and R-VOL. Reformat failed track
using ICKDSF. Restart the initial copy
operation using the Add Pair dialog box.
by
FREEZE
M-VOL,
R-VOL
All TCz Synchronous pairs in the MCU were
suspended by the CGROUP/RUN command.
Resynchronize the pair(s) from the MCU
using Resume Pair or the CESTPAIR
(MODE=RESYNC) TSO command.
MCU P/S-
OFF
R-VOL
(TCzA)
The MCU suspended all TCzA pairs due to MCU
power-off.
None. The MCU will automatically
resynchronize these TCzA pairs during
power-on.
by Sidefile
Overflow
M-VOL,
R-VOL
The amount of 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 MCU and RCU, or
decrease the number of Async pairs or
host I/Os.