Space requirements and maximum file size for successful backup

There must be adequate disk space available on your iSeries client for a backup to complete successfully. When the backup runs, it backs up the library file system using one thread and the integrated file system (IFS) using a second thread. Normally, these threads run in parallel for increased performance. For each thread a SAVF file is created in QTEMP, which consumes disk space. You must have enough disk space available to create these SAVF files or the backup fails.

At a minimum, the following amount of space must be available for parallel processing:

Size of the largest library + size of the largest IFS file

If you do not have enough space for parallel processing, you can use serial processing. For serial processing you need space equal to the size of the largest library or equal to the size of the largest IFS file, whichever is greater. See To modify maximum file size and processing mode for details on switching to serial processing.

If any IFS file exceeds 500MB, that file is backed up individually and will not be part of a directory archive. If you would like to prevent this, you can increase the MaxBlockSize setting so that larger directory archives can be created. Increase the MaxBlockSize setting to accommodate the largest IFS directory.

To modify maximum file size and processing mode