100 
 110 /	B)	HSET  - THE HANDLER SET MUST BE INDICATED AS EITHER UPPER (HSET= 1) OR
 120 /	LOWER (HSET= 0).  THE HSET BIT AND LOGICAL UNIT BITS WILL BE USED TOGETHER  TO
 130 /	DETERMINE A PORTION OF THE HANDLER NAME (SEE BELOW).
 140 
 150 /	C)	IDNUM - EVERY CONTROLLER WITHIN THIS SYSTEM (KNOWN  AS  SASI  OR SCSI)
 160 /	REQUIRES AN ID NUMBER OR UNIQUE TARGET DEVICE ADDRESS.    THE  HANDLER MUST BE
 170 /	ASSEMBLED  FOR  A KNOWN ID NUMBER WHICH WILL PARTIALLY DETERMINE  THE  HANDLER
 180 /	NAME.  UP TO EIGHT ID NUMBERS (0-7) ARE ALLOWED.
 190 
 200 /	D)	OFFSET - THE HANDLER CAN BE ASSEMBLED WITH NO OFFSET,  I.E.,  IT WOULD
 210 /	ADDRESS  THE  ABSOLUTE BEGINNING OF THE DEVICE (POSSIBLY BIASED BY AN  INTEGER
 220 /	MULTIPLE  OF  A  POWER  OF TWO BLOCKS INTO THE DEVICE) AND IS  MEANT  TO  HAVE
 230 /	INDEPENDENT DOMAIN OVER THE DEVICE.  THIS OPTION EXISTS FOR COMPATIBILITY WITH
 240 /	VARIOUS  OBSOLETE  MECHANISMS    WHICH    ARE   NOT  RECOMMENDED  FOR  CURRENT
 250 /	APPLICATIONS.
 260 /		THE PROPER MANAGEMENT OF DISK  DEVICES SUCH AS ARE USUALLY ATTACHED TO
 270 /	THE MDC8 REQUIRES THAT A DEVICE  MAINTAINENCE  AREA  BE RESERVED ON THE DEVICE
 280 /	FOR DEFECT MANAGEMENT, ETC.  THE MOST  COMPREHENSIVE  OF  THESE  IS THE MENU-8
 290 /	UTILITY SYSTEM WHICH ALLOWS SUBORDINATE SYSTEMS (SUCH AS  P?S/8)  TO BE LOADED
 300 /	INDIRECTLY.    PROPER  ASSEMBLY OF THE HANDLER FOR THIS  ENVIRONMENT  REQUIRES
 310 /	SETTING  THE OFFSET PARAMETER.  ALL LOGICAL BLOCKS ARE CONVERTED  TO  PHYSICAL
 320 /	BLOCKS BY ADDING A SMALL FIXED OFFSET (WHICH PLACES THE AFFECTED BLOCKS PAST A
 330 /	PROTECTED AREA WHERE THE MENU SYSTEM RESIDES).
 340 	EJECT
 350 /	E)	LOGUNIT - VARIOUS CONTROLLERS ALLOW LOGICAL UNIT VALUES TO BE ASSERTED
 360 /	FROM 0 THROUGH 7.  CERTAIN  CONTROLLERS  SUPPORT THE UNIT FIELD WITHIN THE I/O
 370 /	COMMAND,  BUT  RESTRICT USEFUL ACCESS TO LOGICAL  UNIT  0  ONLY.    (ON  THESE
 380 /	CONTROLLERS, OTHER LOGICAL UNIT VALUES RETURN "NOT READY",  "NOT  SELECTED" OR
 390 /	OTHER  SUCH ERRORS.)
 400 /		THE SUPPORTED OMTI CONTROLLERS ALLOW FOUR LOGICAL  UNITS (0-3), AS THE
 410 /	HIGH-ORDER LOGICAL UNIT BIT IS IGNORED.  CONTROLLER CONFIGURATION RULES EITHER
 420 /	RESTRICT  OR  RECOMMEND  (FOR COMPATIBILITY WITH MORE RESTRICTIVE CONTROLLERS)
 430 /	THE USE OF LOGICAL UNITS 0 AND 1 FOR WINCHESTER  DISK DRIVES.  OTHER UNITS MAY
 440 /	BE ASSIGNED TO OTHER DEVICES SUCH AS DISKETTE DRIVES, ETC.;   THE  CONTROLLERS
 450 /	GENERALLY  SUPPORT  ONLY  TWO  WINCHESTER  DRIVES MAXIMUM.  THE OMTI 20 SERIES
 460 /	CONTROLLERS RESTRICT THE USE OF LOGICAL UNITS 0 AND 1 TO WINCHESTERS ONLY, AND
 470 /	SPECIFY LOGICAL UNITS 2 AND 3 FOR DISKETTES.
 480 /		THE SUPPORTED  SYQUEST  555  REMOVABLE CARTRIDGE DRIVES (WITH PROPERLY
 490 /	FORMATTED SQ400 CARTRIDGES)  MUST  BE  ADDRESSED AS LOGICAL UNIT ZERO ONLY, AS
 500 /	THE SCSI CONTROLLER IS "IMBEDDED" IN THE HARDWARE OF THE PHYSICAL DRIVE, I.E.,
 510 /	IT IS AN INTEGRAL PART  OF  THE  DRIVE  ITSELF.    THE  SCSI  ID NUMBER MAY BE
 520 /	STRAPPED FOR ANY NON-CONFLICTING VALUE FROM  0  THROUGH  7  VIA JUMPERS ON THE
 530 /	OUTSIDE OF THE DRIVE (SEE SYQUEST DOCUMENTATION ELSEWHERE).
 540 /		THE LOGICAL UNIT PARAMETER, ALONG WITH THE HANDLER  SET PARAMETER WILL
 550 /	PARTIALLY DETERMINE THE HANDLER NAME (SEE BELOW).
 560 	EJECT