If a hardware error, etc. occurs during backup, the following symptoms may be displayed:
The swstbackstat command displays "failed" or "?????" in the Status column.
The swstsyncstat command displays "failed" or "?????" in the Status column.
The swstreststat command displays "failed" or "?????" in the Status column.
The swsthistdisp command displays "failed" or "?????" in the Status column.
The swstexecstat command displays "sync(failed)", "snapshot(failed)", "restore(failed)", or "?????" in the Status column.
The swsttrkstat command displays "failed" or "?????" in the Status column.
The message swst0634, swst0719, or swst0740 is displayed during command execution.
If the execution status display command and history information display command display "failed" in the Status column, a hardware error has occurred during physical copying, and the copy processing has failed.
If the message swst0634, swst0719, or swst0740 is displayed during command execution and the same error occurs even if the command is re-executed, a hardware error, etc. has occurred, causing Advanced Copy to fail.
If any of these messages, statuses or symptoms is generated, a hardware error may have occurred in the transaction volume or backup volume. Check the hardware status, and if a hardware error is found, fix the cause of the error, then re-execute the processing.
