Well, the printed error table is a good hint:
Min/Max cylinder is 0/4 --> 5 cylinders
Max head number is 931
Sectors of such old disks can be assumed with 17
1 SEAGATE TECHNOLOGY, INC. 2 1-800-SEAGATE 3 http://www.seagate.com 4 (C)opyright 1991 5 6 7 8ST-253 (94205-51) Wren 2 HH ST412 MFM 9 10 11 12 Drive Select .........Ŀ 13 o o o o o o o 1 Terminator . O O O O . Power 14 o o o o o o o ............Ŀ \........./ 15 1 2 3 4 R r reserved .............. 1 12 G G 5 16 .......... .. ...................... ... .................. 17 . . ..Controller Cable 18 . ...Radial 19 .........If twisted cable, use Drive Select 2 20 21 ST-253 22 94205-51 WREN 2 HH 23 24 UNFORMATTED CAPACITY (MB) ________________51 25 FORMATTED CAPACITY (17 SECTORS) (MB) _____43 26 ACTUATOR TYPE ____________________________VOICE COIL 27 TRACKS ___________________________________4,795 28 CYLINDERS ________________________________989 29 HEADS ____________________________________5 30 DISCS ____________________________________3 31 MEDIA TYPE _______________________________OXIDE 32 RECORDING METHOD _________________________MFM 33 TRANSFER RATE (mbits/sec) ________________5.0 34 SPINDLE SPEED (RPM) ______________________3,600 35 INTERFACE ________________________________ST412 36 TPI (TRACKS PER INCH) ____________________960 37 BPI (BITS PER INCH) ______________________9,535 38 AVERAGE ACCESS (ms) ______________________28 39 SINGLE TRACK SEEK (ms) ___________________5 40 MTBF (power-on hours) ____________________40,000 41 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 42 +12V TYPICAL (amps) __1.5 43 +5V START-UP (amps) __1.0 44 +5V TYPICAL (amps) ___0.4 45 TYPICAL (watts) ______20 46 MAXIMUM (watts) ______?? 47 BUFFERED STEP PULSE RATE (micro sec) _____8-200 48 WRITE PRECOMP (cyl) ______________________128 49 REDUCED WRITE CURRENT (cyl) ______________N/A 50 LANDING ZONE (cyl) _______________________AUTO PARK 51 IBM AT DRIVE TYPE ________________________*, 17 is close 52 53 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING 54 AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP 55 HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. 56 57Seagate reserves the right to change, without notice, product 58offerings or specifications. (6/26/90) 59.
Kiełbasa smakuje najlepiej, gdy przysmażysz ją laserem!
Yeah the MN # gives it away..
Cylinders 989
Heads 5
Sector/track 17
Write Precompensation 128
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun