Autor: Krzysztof Wroblewski (chris_at_highresnmr.biophys.upenn.edu)
Data: Mon 23 May 1994 - 15:18:05 MET DST
SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
ZDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDBDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD?
3 United States +1 408 438-8771 3 United Kingdom +44 628 478011 3
CDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDEDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD4
3 Germany +49 89 140-9331 3 Singapore +65 227-2217 3
@DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDADDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDY
(C)opyright 1994
ST-3491A
TOP 4-pin DC
Power
UMMMMMMMMMM MMMMMMMMM8/D4D3D2D1D\
MMMMMMMMMM5::::::::::y::::::::1F3 0 0 0 0 FM
TMMMMMMMMMMQMMMMMMMMM>@D5DGDGD12Y
(pin-20 missing
for keying purposes)
(Options jumper located on bottom) (back of drive)
Master OFF, Slave ON DDDDDDDDDDDDDDD 8o-o7 DDDDDDDDDDDDDD 0 0 1
Slave Present ON (standard) DDDDDDDDD o-o DDDDDDDDDDDDDD 0 1 0
ZDDD - - - o-o 3 3 3
Cable Select DDDDDDDDDDDDDDY ZD D D D 2o-o1 S M S
Slave Present ON for DDDDDDDDY (front of drive) i a l
drives that don't have n s a
the -DASP signal (use g t v
only ONE of the Slave l e e
Preset choices) e r
ST-3491A
UNFORMATTED CAPACITY _____________________
FORMATTED CAPACITY (xx SECTORS) __________428.1
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________
CYLINDERS ________________________________(user)
HEADS _(PHYSICAL)_________________________4
DISCS (3.5 in) ___________________________2
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32
EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1
SPINDLE SPEED (RPM) ______________________3,811
AVERAGE LATENCY (mSEC) ___________________7.87
BUFFER ___________________________________120 Kbyte
Multisegmented, SeaCache
INTERFACE ________________________________AT
SECTORS PER DRIVE ________________________836,070
TPI (TRACKS PER INCH) ____________________3,081
BPI (BITS PER INCH) ______________________55,200
FCI (FLUX CHANGES PER INCH) ______________41,400
AVERAGE ACCESS (ms) ______________________15
SINGLE TRACK SEEK (ms) ___________________5
MAX FULL SEEK (ms) _______________________34
MTBF (power-on hours) Office _____________300,000
POWER REQUIREMENTS: +12V START-UP (amps) _1.0
+5V START-UP (amps) _0.30
START-UP (watts)_7.50
POWER MANAGEMENT (Watts):
ACTIVE _______________4.4
IDLE _________________1.8
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO
IBM AT DRIVE TYPE ________________________*
Physical:
Height (inches/mm): 1.00/25.4
Width (inches/mm): 4.02/102.1
Depth (inches/mm): 5.77/146.6
Weight (lbs/kg): 1.3/0.59
* MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO
SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
AVAILABLE. (see below)
Possible translation: 899 cyl, 15 heads, 62 sectors = 428,067,840
Note: A "custom" or "user-definded" CMOS drivetype may ask for a
numerical value for the Write Precompensation cylinder and for the
Landing Zone cylinder. A basic rule-of-thumb for drive models that do
not require the old Write Precomp technique or a Landing Zone because
they are Auto-Parking is to add 1 to the cylinder value being used. As
an example: If cylinders equaled 820, then both Write Precomp and
Landing Zone would be entered as 821. Some BIOS will convert this to
65535 or -1, which are functionally equivalent to "none (not used)".
PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
ZBR = Zone Bit Recording = Variable sectors per track
Already low-level formatted at the factory.
Since a User-definable or Custom translation geometry may be used, it
is imperative that the values be written down and kept with your
permanent records for retrieval in the event of CMOS battery failure.
Seagate reserves the right to change, without notice, product
offerings or specifications. (05/02/94)
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Wed 19 May 2004 - 15:45:19 MET DST