MFM Hard disks ============== Seagate MODEL FORMAT R/W Data Step AveAcc Sect Auto Watts Im Write MBytes HEADS Cyl us ms /Trk Park Max A Comp ----------------------------------------------------------------------------- ST1100 83.0 9 1072 6-200 15 17 YES 12.0 2.7 N/A ST124 21.4 4 615 3-200 40 17 NO 33.0 2.9 N/A ST125 21.4 4 615 3-200 28 17 YES 28.0 2.0 N/A ST125-0 21.4 4 615 3-200 40 17 YES 28.0 2.0 N/A ST125-1 21.4 4 615 3-200 28 17 YES 28.0 2.0 N/A ST138 32.1 6 615 3-200 28 17 YES 28.0 2.0 N/A ST138-0 32.1 6 615 3-200 40 17 YES 28.0 2.0 N/A ST138-1 32.1 6 615 3-200 28 17 YES 28.0 2.0 N/A ST151 42.5 5 977 3-20 24 17 YES 27.0 2.0 N/A ST212 10.0 4 306 5-500 65 17 NO 44.4 4.2 N/A ST213 10.7 2 615 5-200 65 17 NO 30.4 2.2 300 ST225 21.4 4 615 5-200 65 17 NO 33.0 2.4 300 ST251 42.8 6 820 3-200 40 17 YES 36.0 2.0 N/A ST251-0 42.8 6 820 3-200 40 17 YES 29.0 2.0 N/A ST251-1 42.8 6 820 3-200 28 17 YES 36.0 2.5 N/A ST252-0 42.8 6 820 3-200 40 17 YES 29.0 2.0 N/A ST252-1 42.8 6 820 3-200 28 17 YES 36.0 2.5 N/A ST253 43.0 5 989 8-200 28 17 YES 45.0 4.5 N/A ST412 10.0 4 306 5-500 85 17 NO 50.0 3.5 128 ST419 15.0 6 306 5-500 85 32 NO 50.0 3.5 128 ST4026 21.4 4 615 25-50 40 17 YES 55.0 4.0 N/A ST4038 31.9 5 733 10-70 40 17 YES 56.0 4.0 300 ST4038M 31.9 5 733 10-70 40 17 YES 56.0 4.0 N/A ST4051 42.5 5 977 10-70 40 17 YES 55.0 4.0 N/A ST4053 44.5 5 1024 3-70 28 17 YES 55.0 4.0 N/A ST406 5.0 2 306 5-500 85 17 NO 50.0 3.6 128 ST4085 71.0 8 1024 8-200 28 17 YES 61.0 5.8 N/A ST4086 72.0 9 925 8-200 28 17 YES 61.0 5.8 N/A ST4096 80.2 9 1024 3-70 28 17 YES 55.0 5.3 N/A ST4097 80.0 9 1024 8-200 28 17 YES 61.0 4.5 N/A ST506 5.0 4 153 3 Only 85 17 NO 47.0 3.5 128 ----------------------------------------------------------------------------- RLL Hard disks ============== Seagate MODEL FORMAT R/W Data Step AveAcc Sect Auto Watts Im Write MBytes HEADS Cyl us ms /Trk Park A Comp ----------------------------------------------------------------------------- ST1106R 91.0 7 977 24 26 YES 12.0 2.5 N/A ST1150R 128.0 9 1072 6-200 15 26 YES 12.0 3.2 300 ST138R 32.7 4 615 3-200 28 26 YES 28.0 2.8 N/A ST157R-0 49.1 6 615 3-200 40 26 YES 28.0 2.8 N/A ST157R-1 49.1 6 615 3-200 28 26 YES 28.0 2.8 N/A ST225R 21.2 2 667 5-200 70 31 NO 33.0 3.2 N/A ST238R 32.7 4 615 5-200 65 26 NO 33.8 3.2 N/A ST250R 42.3 4 667 5-200 70 31 NO 33.0 3.2 N/A ST251R 43.6 4 820 3-200 40 N/A ST277R-0 65.5 6 820 3-200 40 26 YES 29.0 3.0 N/A ST277R-1 65.5 6 820 3-200 28 26 YES 36.0 3.7 N/A ST278R-0 65.5 6 820 3-200 40 26 YES 29.0 3.0 N/A ST278R-1 65.5 6 820 3-200 28 26 YES 36.0 3.7 N/A ST279R 65.0 5 989 8-200 28 26 YES 40.0 5.5 128 ST4077R 68.2 5 1024 3-70 28 26 YES N/A ST4135R 115.0 9 960 8-200 28 26 YES 61.0 5.8 N/A ST4144R 122.7 9 1024 3-70 28 26 YES 55.5 5.3 N/A ----------------------------------------------------------------------------- SCSI Hard disks ============== Seagate MODEL FORMAT R/W Data Step AveAcc Sect Auto Watts Im Write MBytes HEADS Cyl us ms /DRV Park A Comp ----------------------------------------------------------------------------- ST1090N 79 5 1068 6-200 15 29 YES 33.75 3.25 N/A V ST1096N 83.9 7 906 3-200 20 26 " 33.75 2.6 N/A V ST1111N 98 5 1068 6-200 15 36 " 33.75 3.25 N/A V ST11200N 1050 15 1875 11 VARI " 2.24 N/A V ST1126N 107 7 1068 6-200 15 29/1 " 34 3.25 N/A V ST1133N 113.4 5 1268 6-200 15 36/1 " 34 3.25 N/A V ST1156N 138 7 1068 6-200 15 36 " 34 3.25 N/A V ST1162N 137.5 9 1068 6-200 15 29/1 " 34 3.25 N/A V ST1186N 158.8 7 1268 6-200 15 36/1 " 34 3.25 N/A V ST1201N 171.9 9 1068 6-200 15 36/1 " 34 3.25 N/A V ST1239N 204.2 9 1268 6-200 15 36/1 " 34 3.25 N/A V ST125N-0 21.5 4 407 3-200 40 26 " 29 2.9 N/A S ST125N-1 21.5 4 407 3-200 28 26 " 29 2.9 N/A S ST138N-0 32.2 4 615 40 26 " 29 2.9 N/A S ST138N-1 32.2 4 615 28 26 " 29 2.9 N/A S ST1400N 331 7 1476 14 VARI " 15 2.5 N/A V ST1401N 338 9 1100 12 VARI " 15 2.5 N/A V ST1480N 426 9 1476 14 VARI " 15 2.5 N/A V ST1481N 426 9 1476 14 VARI " 15 2.5 N/A V ST157N-0 48.6 6 615 3-200 40 26 " 29 2.0 N/A S ST157N-1 48.6 6 615 3-200 28 26 " 29 2.0 N/A S ST1581N 525 9 1476 14 VARI " 15 2.5 N/A V ST177N 60.8 5 921 20 26 " 27 2.0 N/A V ST1980N 860 13 1732 10 VARI " 2.0 N/A V ST2106N 91 5 1022 N/A 18 36 " 63 6.2 N/A V ST2125N 107 3 1544 18 VARI " 61 5.8 N/A V ST2209N 179 5 1544 18 VARI " 61 5.8 N/A V ST225N 21.3 4 615 5-200 65 17 NO 2.2 N/A S ST2383N 332 7 1261 14 VARI YES 58 4.75 N/A V ST2502N 435 7 1755 16 VARI " 58 4.75 N/A V ST251N-0 43.1 4 820 3-200 40 26 " 30 3.2 N/A S ST251N-1 43.2 4 630 3-200 28 34 " 37 3.9 N/A S ST277N-0 64.9 6 820 3-200 40 26 " 30 3.2 N/A S ST277N-1 64.9 6 628 3-200 28 34 " 37 3.9 N/A S ST296N 84.9 6 820 3-200 28 34 " 37 2.5 N/A S ST3283N 248.6 5 1691 12 VARI " 5.7 1.5 N/A A ST4077N 67.6 5 28 " N/A A ST4096N 83.9 4 17 " N/A A ST41200N 1037 15 1931 15 VARI " 60 5.6 N/A V ST4144N 122.1 9 28 " 4.0 N/A V ST41600N 1370.5 17 2098 11 VARI " 39.4 6.1 N/A A ST41601N 1370.5 17 2098 11 VARI " 39.4 6.1 N/A A ST41650N 1415 15 2107 15 VARI " 58 5.3 N/A A ST41651N 1415 15 2107 15 VARI " 58 5.3 N/A A ST4182N 155 9 969 16 35 " 63 5.2 N/A V ST4192N 168.5 8 17 " N/A V ST42100N 1900 15 2573 12 VARI " 58 5.3 N/A A ST42101N 1900 15 2573 12 VARI " 58 5.3 N/A A ST4350N 300 9 1412 16 VARI " 64 6.5 N/A V ST4376N 330 9 1549 17 VARI " 64 6.4 N/A V ST4385N 330 15 791 10 VARI " 59 5.5 N/A V ST4702N 601 15 1549 16 VARI " 59 5.5 N/A V ST4766N 676 15 1632 15 54 " 59 5.5 N/A V ST4767N 665 15 1356 12 64 " 60 5.6 N/A V ----------------------------------------------------------------------------- V=Voice Coil A=Straight Arm S=Stepper ESDI Hard disks ============== Seagate MODEL FORMAT R/W Data Step AveAcc Sect Auto Watts Im Write MBytes HEADS Cyl us ms /DRV Park A Comp ----------------------------------------------------------------------------- ST1111E 98 5 1072 6-200 15 36 YES 33.75 3.25 N/A ST1156E 138 7 1072 6-200 15 36 YES 33.75 3.25 N/A ST1201E 177 9 1072 6-200 15 36 YES 12 3.25 N/A ST2106E 89 5 1024 N/A 18 34 YES 59 5.5 N/A ST2182E 160 4 1453 16 54 YES 59 5.5 N/A ST2383E 337 7 1747 N/A 16 54 YES 59 5.5 N/A ST4182E 151.8 9 969 N/A 16 34 YES 61 5.9 N/A ST4383E 319 13 1412 18 34 YES 61 5.9 N/A ST4384E 319 15 1224 14 34 YES 61 5.9 N/A ST4442E 368 15 1412 16 34 YES 61 5.9 N/A ST4766E 664 15 1632 15 53 YES 58 5.3 N/A ST4767E 676 15 1399 12 63 YES 5.7 N/A ST4769E 631 15 1552 13 53 YES 5.7 N/A ----------------------------------------------------------------------------- ATBUS Hard disks ================ Seagate (Check required Docs for translating parmeters) MODEL FORMAT R/W Data Step AveAcc Sect Auto Watts Im Write MBytes HEADS Cyl us ms /DRV Park A Comp ----------------------------------------------------------------------------- ST1057A 53.4 18 YES 2.63 N/A ST1090A 79 6-200 15 YES 33.75 3.25 N/A ST1102A 89.1 19 YES 2.63 N/A ST1111A 98 6-200 15 YES 33.75 2.25 N/A ST1126A 111 6-200 15 YES 33.75 3.25 N/A ST1133A 117 6-200 15 YES 33.75 3.25 N/A ST1144A 130.7 N/A 19 YES 2.63 N/A ST1156A 138 6-200 15 YES 33.75 2.25 N/A ST1162A 143 6-200 15 YES 33.75 3.25 N/A ST1186A 164 6-200 15 YES 33.75 3.25 N/A ST1201A 177 6-200 15 YES 33.75 3.25 N/A ST1239A 211 6-200 15 YES 33.75 3.25 N/A ST125A-0 21.5 3-200 40 YES 29 2.9 N/A ST125A-1 21.5 3-200 28 YES 29 2.9 N/A ST138A 32.1 3-200 40 YES 29 2.9 N/A ST138A 32.1 3-200 28 YES 29 2.9 N/A ST1400A 331.7 14 YES 15 2.8 N/A ST1401A 343.7 12 YES 15 2.5 N/A ST1480A 426.1 14 YES 15 2.5 N/A ST157A-0 44.7 3-200 40 YES 29 2.0 N/A ST157A-1 44.7 3-200 28 YES 29 2.0 N/A ST2274A 241 16 YES 59 5.5 N/A ST2383A 338 16 YES 59 5.5 N/A ST274A 65.5 29 YES 58 5.1 N/A ST280A 71.3 29 YES 58 5.1 N/A ST3051A 43.1 16 YES 5.3 LAPTOP N/A ST3096A 89.2 14 YES 5.3 LAPTOP N/A ST3120A 106.9 15 YES 5.3 LAPTOP N/A ST3144A 130.6 16 YES 5.3 LAPTOP N/A ST325AX 21.4 28 YES 0.8 N/A ST3283A 245.4 12 YES 5.7 LAPTOP N/A ST351AX 42.82 28 YES 0.8 N/A ST9051A 42.8 18 YES 1.7 LAPTOP N/A ST9077A 64.0 18 YES 3.0 LAPTOP N/A ST9096A 85.3 16 YES 2.0 LAPTOP N/A ST9144A 127.9 16 YES 2.0 LAPTOP N/A ----------------------------------------------------------------------------- Maxtor Drive Specifications ------------------------------------------------------------------------ Model Form Capacity Access Cyls Hds Sect/Trk Precomp Park Cyl ------------------------------------------------------------------------ 7080AT 80.2 990 10 17 N/A 7213AT 202 683 16 38 N/A 7120AT 120 936 16 17 N/A Western Digital Drive Specifications ------------------------------------------------------------------------ Model Form Capacity Access Cyls Hds Sect/Trk Precomp Park Cyl ------------------------------------------------------------------------ WDC AC2200F 202 989 12 35 N/A Miniscribe Drive Specifications ------------------------------------------------------------------------ Model Form Capacity Access Cyls Hds Sect/Trk Precomp Park Cyl ------------------------------------------------------------------------ 1006 5F 5.3 179 306 2 17 128 336 1012 5F 10.6 179 306 4 17 128 336 2006 5F 5.3 93 306 2 17 128 336 2012 5F 10.6 85 306 4 17 128 336 3012 5H 10.6 155 612 2 17 128 656 3053 5H 44.5 25 1024 5 17 512 AUTO 3085 5H 71.2 22 1170 7 17 512 AUTO 3130E 5H 112.0 17 1250 5 35 N/A AUTO 3180E 5H 156.8 17 1250 7 35 N/A AUTO 3180S 5H 161.9 17 1255 7 36 N/A AUTO 3212 5H 10.6 85 612 2 17 128 656 3412 5H 10.6 60 306 4 17 128 336 3425 5H 21.4 85 615 4 17 128 656 3425P 5H 21.4 53 615 4 17 128 656 3438 5H 32.7 85 615 4 26 128 656 3438P 5H 32.7 53 615 4 26 128 656 3650 5H 42.2 61 809 6 17 128 852 3650R 5H 64.6 61 809 6 26 128 852 3675 5H 64.6 61 809 6 26 128 852 4010 5F 8.3 133 480 2 17 128 522 4020 5F 16.7 133 480 4 17 128 522 6032 5F 26.7 28 1024 3 17 512 AUTO 6053 5F 44.5 28 1024 5 17 512 AUTO 6079 5F 68.1 28 1024 5 26 512 AUTO 6085 5F 71.3 28 1024 8 17 512 AUTO 6128 5F 109.0 28 1024 8 26 512 AUTO 7040A 3O 42.7 19 981 5 17 N/A AUTO 7080A 3O 85.4 19 981 10 17 N/A AUTO 8051A 3H 42.7 28 745 4 28 N/A AUTO 8051S 3H 42.7 28 745 4 28 N/A AUTO 8212 3H 10.7 68 615 2 17 128 656 8225 3H 20.5 45 771 2 26 128 810 8225A 3H 21.4 40 615 4 17 N/A 810 8225XT 3H 21.4 68 805 2 26 N/A 820 8412 3H 10.6 50 306 4 17 128 336 8425 3H 21.4 68 615 4 17 128 664 8425F 3H 21.4 40 615 4 17 128 664 8425S 3H 21.4 68 615 4 17 N/A 664 8425XT 3H 21.4 68 615 4 17 N/A 664 8438 3H 32.7 68 615 4 26 128 664 8438F 3H 32.7 40 615 4 26 128 664 8450 3H 41.0 45 771 4 26 128 810 8450A 3H 42.7 40 745 4 28 N/A 810 8450XT 3H 42.8 68 805 4 26 N/A 820 9380E 5F 329.0 16 1224 15 35 N/A AUTO 9380S 5F 336.7 16 1218 15 36 N/A AUTO 9780E 5F 676.0 17 1661 15 53 N/A AUTO ------------------------------------ Code Legend E = ESDI Interface S = SCSI Interface A = Integrated AT Controller XT = Integrated PC/XT Controller 5 = 5.25 inch disks 3 = 3.50 inch disks F = Full Height H = Half Height O = One Inch High N/A= Not Applicable - ignored by drive NOTE: In the case of AT drives the characteristics in this table are translated installation characteristics that do not necessarily reflect the physical characteristics of the drive. IDE Hard disks ============== Conner PHYSICAL FORMAT (NATIVE MODE) Drive type for Bios ------------------------------ /--------------------\ MODEL FORMAT R/W Data Sect Drv Cyl Hds Sect MBytes HEADS Cyl Type ENC INTER ----------------------------------------------------------------------------- CP2024 21 2 653 RLL IDE CP3000 42.6 2 1045 40 17 977 5 17 CP3020 20 2 636 33 RLL SCSI CP3024/20 21 2 636 33 17 615 4 17 RLL IDE CP3040 40 2 1047 RLL SCSI CP3044 42 2 1047 17 MFM IDE CP3044/20 42.9 2 1024/26 40 - 977 5 17 CP30064/160 60 4 761 39 - 761 4 39 CP30084/80 84.1 4 1053 39 - 832 6 33 CP30100 120 4 1522 RLL SCSI CP30104/00 120 4 1522 39 - 761 8 39 RLL IDE CP3100 100 8 776 33 RLL SCSI CP3104/00 104 8 776 33 - 776 8 33 RLL IDE CP3114 112 8 832 33 - 832 8 33 RLL IDE CP3180 80 6 832 UNK SCSI CP3184/80 84.2 6 832 33 - 832 6 33 RLL IDE CP3200 209 8 1209 39 RLL SCSI CP3200F 212 8 1366 38 RLL SCSI CP3204F/00F 212 8 1366 38 - 683 16 38 RLL IDE CP340 42 4 788 26 RLL SCSI CP342 40.0 4 2 CP344 42 4 805 RLL IDE CP3504 510 12 1695 49 - 1024 16 61 CP4024 21 2 627 RLL IDE CP4044 42 2 1104 RLL IDE ----------------------------------------------------------------------------- VAX Hard disks ============== Digital rev/min Total Clust Sect Trk Max Total FORMAT UNFORM Ave trk Bytes hds trks Rot Ave Ave Cyl Size Trk Cyl File Blocks MBytes MBytes seek trk Sectr Surf Spd access Rot-Lat ------------------------------------------------------------------------------------------------------------------ RZ22 33 52 25 512 33.4 8.3 RZ23 33 104 25 512 33.4 8.3 RZ24 38 209 16 512 24.3 8.3 RZ55 36 332 380 16 512 24.3 8.3 RZ56 54 665 760 16 512 24.3 8.3 RZ57 71 1GB 1.2GB 14.5 512 22.8 8.3 RA60 42 205 41.7 512 1600 3600 50ms 8.3 REMOVABLE RA70 33+1 280 350 19.5 512 11+1 1507 4000 27.0ms 7.5 RA80 RA81 1248 3 51 14 152083 891072 440 RA82 1423 3 57 15 152083 1216665 622 855 24 6 512 15 3600 32.3 8.3 RA90 69+1 1.2GB 1.6GB 16ms 5.5ms 512 13 3600 8.3ms RA92 1.5GB 2.0GB 18.5 RF30 37+1 150 200 21 3.0 512 1331 3600 29.3 8.3 RF31 381 499 15.3 23.6 RF71 400 532 21 RF72 50+1 1.0GB 1.4GB 13.3 512 1861 21.7 8.3 ------------------------------------------------------------------------------------------------------------------ DEC HARD DISK EQUIVILENTS ========================= RD31 ST225 RD32 ST241-1 (ST251) RD33 RD50 ST506 RD51 ST412 RD52 Quantum Q540/Atasi 3046/Evotek ET-5540 (almost) RD53 Micropolis 1325 with jumper R7 inserted (1335 also works) RD54 RD31 20MB 4 615 RD32 42MB 6 820 RD33 RD50 5MB 4 153 RD51 10MB 4 306 RD52 30MB 8 512 RD53 70MB 8 1024 RD54 159MB General Disk Information ======================== --Sector location ranges(DOS 3.xx)-- Disk Disk Sectrs Media CLust Boot FAT-1 FAT-2 Root Data Area Size Type perTrk Dscrpt Size ------------------------------------ ------------------------------------------------------------------------- 10M HARD 17 F8 4096 0 1-8 9-16 17-48 49-20720 20M HARD 17 F8 2048~ 0 1-40 41-80 81-112 113-40457 21M HARD 17 F8 2048~ 0 1-41 42-82 83-114 115-41666 30M HARD 17 F8 2048~ 0 1-60 61-120 121-152 153-60157 31M HARD 17 F8 2048~ 0 1-61 62-122 123-154 155-62202 32M HARD 17 F8 2048~ 0 1-63 64-126 127-158 159-63856 33M HARD 17 F8 2048~ 0 1-64 65-128 129-160 161-65516 60M HARD 17 F8 2048~ 0 1-118 119-236 237-268 269-120596 ------------------------------------------------------------------------- Cluster size=8192 if done under DOS 2.xx Disk Controller Connectors: =========================== XT Fixed Disk Controller Connector J1: Pin Discription Direction 1 Ground 2 -Reduced write current From controller 3 Ground 4 RESERVED 5 Ground 6 -Write gate From controller 7 Ground 8 -Seek complete From drive 9 Ground 10 -Track 00 From drive 11 Ground 12 -Write Fault From drive 13 Ground 14 -Head select 2^0 From controller 15 Ground 16 RESERVED 17 Ground 18 -Head select 2^1 From controller 19 Ground 20 -Index From drive 21 Ground 22 -Ready From drive 23 Ground 24 -Step From controller 25 Ground 26 -Drive select 1 From controller 27 Ground 28 -Drive select 2 From controller 29 Ground 30 RESERVED 31 Ground 32 RESERVED 33 Ground 34 -Direction in From controller XT Fixed Disk Controller Connectors J2 and J3: Pin Discription Direction 1 Drive select From drive 2 Ground 3 Reserved 4 Ground 5 NO PIN (key) 6 Ground 7 RESERVED 8 Ground 9 UNUSED 10 UNUSED 11 Ground 12 Ground 13 MFM write data From controller 14 -MFM write data From controller 15 Ground 16 Ground 17 MFM read data From drive 18 -MFM read data From drive 19 Ground 20 Ground