This section deals with the handling of errors in the DBCLONE phase.

In the DBCLONE phase, the Software Update Manager starts a number of background jobs to create copies of the tables required for operating the shadow system. Depending on your system and your hardware, this operation can take several hours. These background jobs are executed on the background server that is configured with the BATCH HOST parameter. The number of jobs is determined by the parameter MAX BATCH PROCESSES. It cannot be higher than nine or the number of background processes configured on the background server.

Each table is copied with a single INSERT statement. Therefore, the administrator has to take care that the undo-logs can grow accordingly.

Each cloning job writes a log file called DBCLONE<NUMBER>.<SID>. At the end of the phase, all errors found in these log files are collected in the DBCLONE.ELG file. The information in the DBCLONE.ELG file is rather sparse. Therefore, you also have to check the corresponding log files to find detailed information about the error.