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ST3600

Capacity:
Speed:
Average Seek Time:
 Cylinders:
Heads:
Sectors:

426.0 MB
4500 rpm
9.9 ms
895
15
62


Installation Guide | Product Manual

 

Odd characters? Click here for help. A version of this specification with the linedraw characters approximated by text is available by clicking here.

                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1991



ST-3500A AT Interface


                     J5 Drive ID Select and     │    │ J6 (located on side
                     Configuration Select Header│    │ near rear)
                     ──────────────────────┬────┘    └──────────┬─────────
                                           │                   o o o1
                                           │            +5v ---o o o
 40-pin I/O Cable Connector                │                  ════════
   Ň════════════════════Ş             o o o o o1               1 2 3
 J1│::::::::::¨::::::::1│ /─────────\ o o o o o     Remote LED├┘ │ └┤Reserved
  ═¤══════════Đ═════════¤═│ 0 0 0 0 │═══════════    Connection┘  └──┤Jumper
  (pin 20 missing for     └─5─G─G─12┘ (see below)─┐                 └Position
   keying purposes)         DC Power     ┌────────┘
                                         │
                    ┌─J5─────────────────┴────────────┐
                    │        ┌─┐     ┌─┐ ┌─┐   1      │
                    │        │o│  o-C┤o├E┤o├G-o       │
                    │        │o├B-o  │o│ │o│  o       │
                    │        └A┘     └D┘ └F┘  H       │
                    │   ══════════════════════════    │
                    └──Defaults shown in solid lines──┘

J5 Jumper  Funtion Description (* indicates default)
──────────────────────────────────────────────────────
A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)
OFF  OFF   Drive is the slave (Drive 1).
OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.
ON*  OFF   Drive s the master (Drive 0).

C          (C=horizontal, pins 5 & 7)
ON         Slave (Drive 1) Present is connected to J1 pin 39. Jumpers
           "D" or "E" cannot be installed if jumper "C" is installed.

D          (D=vertical, pins 5 & 6)
ON*        DASP- is connected to J1 pin 39. Jumpers "C", "D", "F", or
           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

E          (E=horizontal, pins 3 & 5)
ON         REFSIG is connected to J1 pin 39. Jumpers "C", "D", "F",
           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

F          (F=vertical, pins 3 & 4)
ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"
           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of
           the synchronized spindle reference signal (pin 3) and
           ground (pin 4).

G          (G=horizontal, pins 1 & 3)
ON         REFSIG is connected to J1 pin 28. Jumpers "E" or "F" cannot
           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J1 pin 28.

H          (H=vertical, pins 1 & 2)
ON         Drive implements "CSEL" (Cable Select line in I/O connector)
           feature.  Implementation not defined yet.  Jumpers A and B
           not used if jumper H is on.  (This jumper is mutually
           exclusive with jumper "G").

OFF*       Drive select is based on use of jumper A or B.


J6 Jumper  Funtion Description (2x3 jumper block)
-------------------------------------------------
     1     Remote LED connection. Pin 6 is connected to +5v through a
           147 ohm resistor. Pin 5 is the LED driver.

     2     Reserved jumper position.

     3     Reserved jumper position.


                            ST-3500A

       UNFORMATTED CAPACITY (MB) ________________502
       FORMATTED CAPACITY (xx SECTORS) (MB) _____426
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________10,829
       CYLINDERS __PHYSICAL______________________1,547 (user)
       HEADS ______PHYSICAL______________________7
       DISCS (3.5 in) ___________________________4
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       TRANSFER RATE INTERNAL (mbits/sec)________21.6 to 36
       SPINDLE SPEED (RPM) ______________________4,535
       AVERAGE LATENCY (mSEC) ___________________6.61
       BUFFER ___________________________________256 KByte SeaCache
        Prefetch, Multi-Segmented
       INTERFACE ________________________________AT BUS
       SECTORS PER DRIVE ________________________
       TPI (TRACKS PER INCH) ____________________2150
       AVERAGE ACCESS (ms) (read/write)__________9.9/10.6
       SINGLE TRACK SEEK (ms) ___________________2
       MAX FULL SEEK (ms) _______________________21.5
       MTBF (power-on hours) ____________________200,000
       POWER REQUIREMENTS: +12V START-UP (amps) _1.5
                           +12V TYPICAL (amps) __0.4
                           +5V TYPICAL (amps) ___0.2
                           TYPICAL (watts) ______5
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):     1.00/25.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146.1
                        Weight   (lbs/kg):      1.8/0.80

 * 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:   895 cyl, 15 heads, 62 sectors = 426,163,200

Note: A "custom" or "user-defined" 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

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. (10/12/92)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/at/st3500a.txt.


 



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