IBM 8317 - Manual (Page 21)

Quick and Full erase - hard drive
The Diagnostics program offers two hard drive format utilities:
v Quick Erase Hard Drive
v Full Erase Hard Drive
The Quick Erase Hard Drive provides a DOS utility that performs the following
steps.
v Destroys the Master Boot Record (MBR) on the hard drive.
v Destroys all copies of the FAT Table on all partitions (both the master and
backup).
v Destroys the partition table.
v Provides messages that warn the user that this is a non-recoverable process.
Chapter 4. Diagnostics 15