About the bphdb directory on the Windows database client
The install_path\NetBackup\logs\bphdb directory contains log files.
The following types of logs exist:
sap_stdout.mmddyy.hhmmss.txt
Unless it is redirected elsewhere, NetBackup writes SAP script output to this file.
sap_stderr.log.mmddyy.hhmmss.txt
Unless it is redirected elsewhere, NetBackup writes SAP script errors to this file.
This log contains debugging information for the bphdb process. bphdb is the NetBackup database backup binary. It is invoked when an automatic backup schedule is run. NetBackup for SAP uses this client process for SAP script execution.