SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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(C)opyright 1994
ST-3295A (Medalist 270xe)
TOP 4-pin DC
Power
����������� ��������/�4�3�2�1�\
���������͵::::::::::�::::::::1Ƴ 0 0 0 0 ��
��������������������;��5�G�G�12�
(pin-20 missing
for keying purposes)
(Options jumper located on bottom) (back of drive)
Master OFF, Slave ON ��������������� 8o-o7 �������������� 0 0 1
Slave Present ON (standard) ��������� o-o �������������� 0 1 0
���� - - - o-o � � �
Cable Select ��������������� �� � � � 2o-o1 S M S
Slave Present ON for ��������� (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
Spare jumper stored on pins 1-3
ST-3295A
Medalist 270xe
FORMATTED CAPACITY (xx SECTORS) __________272.7
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________
CYLINDERS ________________________________(user)
HEADS _(PHYSICAL)_________________________2
DISCS (3.5 in) ___________________________1
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______19.5 to 35.8
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 ________________________532,700
TPI (TRACKS PER INCH) ____________________3,285
BPI (BITS PER INCH) ______________________61,700
FCI (FLUX CHANGES PER INCH) ______________46,390
AVERAGE ACCESS (ms) ______________________14
SINGLE TRACK SEEK (ms) ___________________5
MAX FULL SEEK (ms) _______________________34
MTBF (power-on hours) Office _____________300,000
ACOUSTICS (typ/max dBA) __________________29/33
SHOCK (Normal/Abnormal/Nonoper.) _________2/10/75
POWER REQUIREMENTS: +12V START-UP (amps) _1.1
+5V START-UP (amps) _0.35
START-UP (watts)_8.5
POWER MANAGEMENT (Watts):
ACTIVE _______________5.23
IDLE _________________1.865
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO
IBM AT DRIVE TYPE ________________________*
* 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: 761 cyl, 14 heads, 50 sectors = 272,742,400
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. (08/17/94)
