🚀 go-pugleaf

Hawley G Hansen (hhansen@mason1.gmu.edu) wrote:

: If anybody has this drive or is familiar with the Seagate 
: family, please help me out.  It would be greatly appreciated. Thanks!!



ST-157R ST412 RLL
                                                            /---+
                                                            | O |12
                                                            | O |G
                                                            | O |G
                                                            | O |5
       Data Cable             Controller Cable    1         \---+
      --------- --          -------------------- ---   ------------
              1 o o o o o o o +------------1
              o o o o o o o o +------------+
              | | | | 4 3 2 1    ^ Resistor Termination Pack
              | | | | ---+---
              | | | |    |
              | | | |    +---- Drive Selects
              | | | +--------- Factory Test
              | | +----------- Write Fault
              | +------------- Not Used
              +--------------- Radial

Note: Some configurations have the drive select jumper block oriented
      perpendicular to the back of the drive. In this configuration,
      pin-1 (radial select) is closest to the front faceplate of the
      drive.

                           ST - 157R

       UNFORMATTED CAPACITY (MB) ________________57.7
       FORMATTED CAPACITY (26 SECTORS) (MB) _____49.1
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________3,690
       CYLINDERS ________________________________615
       HEADS ____________________________________6
       DISCS ____________________________________3
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       SPINDLE SPEED (RPM) ______________________3,600
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________824
       BPI (BITS PER INCH) ______________________22,430
       AVERAGE ACCESS (ms)*______________________40/28
       SINGLE TRACK SEEK (ms) ___________________8
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.0
                           +12V TYPICAL (amps) __0.35
                           +5V TYPICAL (amps) ___0.8
                           TYPICAL (watts) ______8
                           MAXIMUM (watts) ______28
       BUFFERED STEP PULSE RATE (micro sec) _____3-200
       WRITE PRECOMP (cyl) ______________________N/A (616)
       REDUCED WRITE CURRENT (cyl) ______________N/A (616)
       LANDING ZONE (cyl)________________________AUTO PARK
       IBM AT DRIVE TYPE ________________________**

       *ST157R-0/ST157R-1

 * 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.
-- 

+--------------------+-------------------------------------------------------+
|   Michael Faurot   | Domain: mfaurot@bogart.UUCP		             |
|   ------- ------   | Or:     mfaurot%bogart@mimsy.umd.edu                  |
+--------------------+-------------------------------------------------------+