Subsystem Control Point (SCP) Management Programming Manual

Event Messages
Subsystem Control Point (SCP) Management Programming Manual—520619-001
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27 ZSCP-EVT-CKPT-WRITE-ERR
Recovery. If the SCP process gives up trying to create a backup process, notify the
system manager. The SCP process should have a backup process.
27 ZSCP-EVT-CKPT-WRITE-ERR
An SCP checkpoint write to the backup process failed.
ZSCP-TKN-ERRCODE
contains the error code returned by the file system.
Cause. An SCP checkpoint write to the backup process failed. The CHECKPOINT
procedure might have failed because the primary SCP process could not communicate
with the backup process.
Effect. The SCP process issues this event message. If the backup process exists, it is
stopped and started again. If it does not exist, it is started again.
If the error is caused by a process control block (PCB) problem, a memory allocation
problem, a swap file problem, or a communication problem with a CPU-monitor
process, the SCP process keeps trying to create a backup process. If there is any other
problem, the SCP process gives up trying to create a backup process. If there is no
backup process, the SCP process is not executing in fault-tolerant mode.
The CHECKPOINT procedure returns a status code. If the procedure failed because the
primary SCP process could not communicate with the backup, the status code contains a
file-system error identifying the cause of the failure.
Recovery. If the problem recurs, obtain this information (if available) before calling a
Compaq representative: the SAVEABEND file, the SCF log, the SCP trace file, and the
CPU dump.
28 ZSCP-EVT-BKP-OPEN-ERR
The Guardian OPEN or FILE_OPEN_ procedure returned an error when SCP attempted
to open its backup process.
Tokens in Event Message
ZSCP-TKN-ERRCODE <1> token-type ZSPI-TYP-INT.
Message Text
Checkpoint write failed; error <1>
Tokens in Event Message
ZSCP-TKN-ERRCODE <1> token-type ZSPI-TYP-INT.
Message Text
OPEN to backup failed; error <1>