A method and system for providing access to a protected partition of a direct access storage device in a data processing system which includes a direct access storage device, an adapter that commands I/O of the storage device and also contains a protection mechanism that restricts access to a memory...http://www.google.fr/patents/US5651139?utm_source=gb-gplus-shareBrevet US5651139 - Protected system partition read/write access on a SCSI controlled DASD
Protected system partition read/write access on a SCSI controlled DASD