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Mechanism for Providing Media Security on Removable Media Small Computer System Interface Direct Access Storage Devices

IP.com Disclosure Number: IPCOM000108337D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 31K

Publishing Venue

IBM

Related People

Kerins, TM: AUTHOR [+2]

Abstract

This article describes a user-settable switch provided on a direct access storage device (DASD) drive with removable media to set the device default for removability of the media to an allow or prevent mode as desired.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Mechanism for Providing Media Security on Removable Media Small Computer System Interface Direct Access Storage Devices

       This article describes a user-settable switch provided on
a direct access storage device (DASD) drive with removable media to
set the device default for removability of the media to an allow or
prevent mode as desired.

      In some small computer system interfaces (SCSIs) there is a
software command called "prevent/allow media removal" which allows
the media to be secured under software control. Current drives
usually set the default condition to allow removal on power-up and/or
SCSI reset.  If a user wants the drive to be secured, the default
condition would have to be set  to prevent media removal.

      This can cause two problems.  It creates an incompatibility
between existing drives and secured drives and would require two
models of drive to be offered to meet all customer requirements
(those who want security and those who do not).

      To solve these problems, the scheme disclosed herein involves
putting a jumper or switch (or some other programming device) on the
SCSI DASD to allow the user to physically set the default condition
to meet his/her specific requirements.