HP XP7 Continuous Access Synchronous for Mainframe Systems User Guide (TK911-96003)

Corrective actionDescriptionPath status
Repair the path relay equipment, then restore the path
*
.The path relay equipment
does not work.
Replace the broken cable, then restore the path
*
.The connection cable is
physically broken.
Restore the path
*
.A program error is detected.Program Error
* To restore a path, delete and then add the path again. It may be necessary to delete and then add the RCU again.
To delete the RCU or path, see “Deleting Continuous Access Synchronous Z” (page 90) or “Deleting remote paths”
(page 87). To re-register, see “Setting up primary and secondary systems for Cnt Ac-S Z” (page 60). If you cannot
restore the path after performing these operations, contact HP for assistance.
Split pair problems
The following table provides a list of split pair problem types.
Corrective actionDescriptionApplies toPair status/type
Resynchronize the pair from the MCU (Resume
Pair).
The user split the pair from the
MCU specifying Disable for the
P-VOLP-VOL by
Operator
Primary Volume Write option. The
S-VOL split type is by MCU.
Resynchronize the pair from the MCU (Resume
Pair).
The user split the pair from the
MCU or RCU specifying Disable
P-VOL,
S-VOL
S-VOL by
Operator
for the Primary Volume Write
option.
Resynchronize the pair from the MCU (Resume
Pair).
The RCU received a request from
the MCU to split the pair. The
S-VOLby MCU
P-VOL split type is P-VOL by
Operator or S-VOL by Operator.
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
P-VOLSuspended (pair
suspended-error)/
by RCU
If you need to access the S-VOL to clear the error
conditions, release the pair from the secondary
system to split the pair. The S-VOL
split type is S-VOL Failure.
system. After you clear the error conditions from
S-VOL, restart the pair.
Release the pair from the MCU, then recreate the
pair. You should use Entire Copy for the Initial
The MCU detected that the S-VOL
status changed to Simplex because
P-VOLDelete Pair to
RCU
Copy Type option to resynchronize the pair. Usethe user released the pair from the
No Copy only if data in the P-VOL is identical to
data in the S-VOL.
RCU. The pair cannot be
resynchronized because the S-VOL
does not have the Suspend status.
The primary system detected an
error during communication with
P-VOLSuspended (pair
suspended-error)/
S-VOL Failure
• Check the path status on the Remote Connection
window. If errors occurred on the path, clear
the error conditions.
the secondary system, or detected
an I/O error during update copy.
• Clear any error conditions at the secondary
system or S-VOL, then resynchronize the pair
from the primary system.
In this case, the split type for the
S-VOL is usually S-VOL Failure.
• If you need to access the S-VOL to clear the
error conditions, release the pair from the
secondary system. After you clear the error
conditions, recreate the pair.
Resynchronize the pair from the primary system.
An entire initial copy operation will be performed
in response to the Resume Pair request.
The primary system could not find
valid control information in its
nonvolatile memory during the
P-VOL,
S-VOL
Suspend-delete
pair to RCU/
MCU IMPL
Split pair problems 103