AOH :: ST4767E.TXT
Seagate ST4767E ESDI Hard Disk Specs and Docs
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SEAGATE TECHNOLOGY, INC.
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(C)opyright 1991
ST-4767ES Wren Runner 2 FH ESDI
�Data Cable �Controller Cable /�5횳횳�12\
袴袴袴袴 袴� J11 袴袴袴袴袴袴袴 袴� 固 0 0 0 0 팠�
o o o o o o o o o 1컴컴컴컴컴커 o o o o읕컴J1컴컴�
J9 o o o o o o o 컫� 픖erminator켸 o o o o
1 2 3 4 5 6 7 윱Synchronous 1 2 4 W
Motor Start 컴� � � � � � � 쿞pindles 컴쩡� � J8
option enable � � � � � � � � Write Protect
� � � � � � Synchronized Spindle 읕컴� Drive Selects
Factory use only 켸 � � � � Terminator (connected on Binary Coded
� � � � last drive in daisy chain)
Sectors � � � 읕 Factory use only
袴袴袴袴袴曲曲曲袴
Special 0 0 0
60 0 0 1 = 644,659,200
61 0 1 0 = 655,403,520
62 0 1 1 = 666,147,840
63 1 0 0 = 676,892,160
33 1 0 1
Reserved 1 1 0 0=open; 1=closed
Add Mark 1 1 1
ST-4767E
UNFORMATTED CAPACITY (MB) ________________788
FORMATTED CAPACITY (63 SECTORS) (MB) _____676 **
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________20,985
CYLINDERS ________________________________1399
HEADS ____________________________________15
DISCS ____________________________________8
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL (1,7)
TRANSFER RATE (mbytes/sec) _______________3
INTERNAL TRANSFER RATE (mbits/sec) _______24
SPINDLE SPEED (RPM) ______________________4,800
AVERAGE LATENCY (mSEC) ___________________6.25
INTERFACE ________________________________ESDI
TPI (TRACKS PER INCH) ____________________1,600
BPI (BITS PER INCH) ______________________32,049
AVERAGE ACCESS (ms) ______________________11.9
SINGLE TRACK SEEK (ms) ___________________2.5
MAX FULL SEEK (ms) _______________________25
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __2.0
+5V START-UP (amps) __1.2
+5V TYPICAL (amps) ___0.8
TYPICAL (watts) ______27
MAXIMUM (watts) ______
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________*
* MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP
HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.
** ESDI controllers which offer an Alternate/Spare sector per track
option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
^Z
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