Quick And Full Erase - Hard Drive - IBM 2292 Hardware Maintenance Manual

non-destructive ranges somehow overlap, then the overlapped area is considered
non-destructive. For example, if users specify both destructive and non-destructive
ranges as the same, then the entire drive is tested as non-destructive.

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.
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Chapter 4. Diagnostics