From: davem@ersys.edmonton.ab.ca (Dave McCrady)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: need drive parameters for Seagate ST-1144A
Date: Sun, 27 Sep 92 13:27:31 MDT
Organization: Edmonton Remote Systems #7, Edmonton, AB, Canada

nan@matt.ksu.ksu.edu (Nan Zou) writes:

- I pulled a Seagate ST-1144A 125MB drive from somewhere and hope to use
- it along with my Maxtor 7080A.  Since no manual can be found, I'd
- appreciate it if anyone could tell me what parameters (cyn, head, wp,
- lz, sec, size) I need to set it up.  Thanks much.
- 
- Also if you've used it with a Maxtor 7080A I'd like to know if there're
- any problems.
- 
- -- Nan


SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright  1990

                             ST-1144A

     ===PWA=====================================================
                          +....................+    +---------+
                           ....................     | O O O O |
       1 o o 2  --------+       + Cable Connector   +-5-G-G-12+
       3 o o 4  ------+ |
       5 o o 6  ----+ | |
       7 o o 8  --+ | | |
       9 o o 10 + | | | |
                | | | | +-- Life-Test (Factory use)
                | | | +---- Master on (Slave off)
                | | +------ Slave Present (Drive 1 in 2-Drive System)
                | +-------- Reserved
                +---------- Remote LED


                            ST-1144A


       UNFORMATTED CAPACITY (MB) ________________N/A
       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __124.7
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________14,336
       CYLINDERS __PHYSICAL/LOGICAL______________NA/1,024
       HEADS ______PHYSICAL/LOGICAL______________7/14
       DISCS ____________________________________4
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL ZBR
       TRANSFER RATE INTERNAL (mbits/sec) _______8.2/10/12
       INTERFACE ________________________________AT BUS
       TPI (TRACKS PER INCH) ____________________1,300
       BPI (BITS PER INCH) ______________________21,600
       AVERAGE ACCESS (ms) ______________________18
       SINGLE TRACK SEEK (ms) ___________________6
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.0
                           +12V TYPICAL (amps) __0.7
                           +5V START-UP (amps) __0.63
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______8
                           MAXIMUM (watts) ______
       BUFFERED STEP PULSE RATE (micro sec) _____
       WRITE PRECOMP (cyl) ______________________N/A (1024)
       REDUCED WRITE CURRENT (cyl) ______________N/A (1024)
       LANDING ZONE (cyl) _______________________AUTO PARK
       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:  1024 cyl, 14 heads, 17 sectors = 124,780,544
Possible translation:  1001 cyl, 15 heads, 17 sectors = 130,690,560

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
ZBR = Zone Bit Recording = Variable sectors per track

!WARNING! - 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. (6/26/90)

Dave McCrady              davem@ersys.edmonton.ab.ca