SUMMARY:

From: Robert J Wolf (rwolf@dretor.dciem.dnd.ca)
Date: Sat Nov 30 1991 - 00:14:06 CST

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This is a summary for a format.dat entry for a CDC 9720-1230 connected to
a xylogics controller. The responses I got contained so much worthwhile
information I decided to create a summary. I recommend all Sun managers
with this drive at least read this summary even if your disk works.

I have also included a HUGE FORMAT.DAT table for MANY DIFFERENT DRIVES
from Brian Bartholomew bb@math.ufl.edu which many people would appreciate.

Special thanks to the following people who replied. Once again the net
came through when Sun did not.

poffen@sj.ate.slb.com
sid@ingres.com
burgess@pwtc.tc.pw.com
sane!genmri!figueira@crdgw1.ge.com
bb@math.ufl.edu
moore@nlm.nih.gov
sitongia@hao.ucar.edu
ross!hdr@cs.utexas.edu
ugw.utcs.utoronto.ca:aco@taurus.bitnet

The winning reponse was from:
Chris Burgess
Price Waterhouse Technology Centre

Thanks to all of you on the net.
------------------------------------------------------------------------------
Robert J Wolf, Sun System Admin. DCIEM, CFB Toronto
rwolf@dciem.dnd.ca PO Box 2000 1133 Sheppard Avenue West
uunet!csri.toronto.edu!dciem!rwolf North York (Toronto), Ont., Canada M3M 3B9
Internet: 192.16.207.3 Phone: (416)635-2073 FAX: (416)635-2104
"Capitalism with environmental ethics will benefit the entire world."

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

>From burgess@pwtc.tc.pw.com Thu Nov 14 19:53:57 1991

>A few days ago I posted a request on sun-managers asking for a format.dat
>entry for a CDC 972-1230 connected to a xylogics controller.
>Your response was the only one regarding slip sectoring.
>
>Without slip sectoring:
>
>disk_type = "CDC 9720-1230
> : ctlr = XD7053 \
> : ncyl = 1632 : acyl = 3 : pcyl = 1635 : nhead = 15 : nsect = 83 \
> : rpm = 3600 : bpt = 50400 : bps = 600
>
>partition = "CDC 9720-1230" \
> : disk = "CDC 9720-1230" : ctlr = XD7053 \
> : c = 0, 2031840
>
>With slip sectoring:
>
>disk_type = "CDC 9720-1230 SLIP" \
> : ctlr = XD7053 \
> : ncyl = 1632 : acyl = 3 : pcyl = 1635 : nhead = 15 : nsect = 82 \
> : rpm = 3600 : bpt = 50400 : bps = 600
>
>partition = "CDC 9720-1230 SLIP" \
> : disk = "CDC 9720-1230 SLIP" : ctlr = XD7053 \
> : c = 0, 2007360
>
>
>I have a few questions, which I would be extremely pleased if you could answer.
>
>The acyl setting of 3, other people's responses stated 4 or 2.
>Can this set to either or does it so how depend on any switch settings?
>I assume that ncyl = pcyl - acyl.

Yes, acyl can also be set to 2 or 4, as long as you set ncyl = pcyl - acyl,
so if acyl is 2 then ncyl should be 1633, or if acyl is 4 then ncyl should
be 1631. A value of 2 should be adequate for most disks, but I use 3 just
in case.

>How is slip sectoring enabled? Are the switch settings involved?
>Is there a way of determining whether it is enabled from software?
>Is it determined by the setting of nsect or vise-versa?
>What if nsect is 83 and slip sectoring is enabled?

To use slip sectoring, just make sure that the value of nsect is set
to 1 fewer than the number of full sectors per track. No switch settings
need to be changed on the drive. If 600 bytes per sector are to be used,
the sector switches on the drive should be set to 599 (adding 1
to this value and multiplying it by the bytes per sector clock pulse
value of 1.0 give 600 bytes per sector. With the fixed value of 50400
bytes per track, this defines there to be 84 sectors per track. The
first sector being 608 bytes long, the last sector being 592 bytes long,
and the 82 sectors between the first and the last being actually 600
bytes long. Thus there are 83 sector of at least 600 bytes. So to use
slip sectoring use one less than the number of full sectors for nsect
(nsect = 82), or to disable slip sectoring use nsect = 83. The format
program will automatically use slip sectoring if there is a sector
reservered for it (by setting nsect to one less than the real value).

You lose nhead * ncyl sectors on your drive by using slip sectoring,
so if your drive will format without slip sectoring you will get a
small amount more disk space available (nhead * ncyl = 15 * 1632 =
24480 sectors).

>Sun is not giving me much help because this is not a sun drive.

That's ok, Sun wouldn't give much help if it was a Sun drive.

>I have no documentation and the previous system administrator left no notes
>or anything including no format.dat entry.
>I tried contacting CDC but they say they are no longer in the hard disk
>business and should call Seagate. After dailing 3 numbers, I eventually
>got into the technical support telephone queue and waited almost an hour
>before giving up.

You could try getting the users manual for the drive from Seagate. The
manual is called:

    User's Manual 83325710
    Sabre Eight-Inch Module Drive
    PA8G1/PA8G2
    PA8K1/PA8K2
    PA8N1/PA8N2
    PA8W2

The address to get this manual from is:

    Impris Technology Inc.
    Technical Publications Dept.
    5950 Cleaqrwater Drive
    Minnetonka, MN 55343

>The only information I have is
># dkinfo xd0
>xd0: Xylogics 7053 controller at addr ee80, unit # 0
>1633 cylinders 15 heads 83 sectors/track
>
>Any help would be appreciated? I possible please answer asap because
>on Wed morning a technician is going to come in and he has no idea what I
>am talking about.
>
>Thanks
>p.s. I will summarize to the net.

If you still have any questions, just send me another message.

--- Chris Burgess Price Waterhouse Technology Centre 68 Willow Road, Menlo Park, CA 94025 Phone: (415) 688-6656

Internet: burgess@tc.pw.com (MX Mailers) burgess%tc.pw.com@Labrea.Stanford.EDU (Others) UUCP: ....!decwrl!labrea!pwtc!burgess

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

>From bb@math.ufl.edu Fri Nov 15 00:00:30 1991

Your drive is mentioned in one of the two following tables. Enjoy.

"Any sufficiently advanced technology is indistinguishable from a rigged demo." ------------------------------------------------------------------------------- Brian Bartholomew UUCP: ...gatech!uflorida!reef.cis.ufl.edu!bb University of Florida Internet: bb@math.ufl.edu

-----

Thanks to Jeff Nieusma (nieusma@boulder.colorado.edu) for the first table. The second table was snagged from somwhere on ftp.utexas.edu.

----- FIRST TABLE -----

Vendor type Model ncyl bpt nhead nsect bps rpm ------ ----- ----- ---- --- ----- ----- --- --- CDC SMD Saber9720-1230 1633 50400 15 82 600 3600 CDC SMD Saber97200-2500 2609 50400 19 83 600 3600 CDC SMD 9720-850 1358 41088 15 66 610 3600 Fujitsu SMD 2312K 587 20480 7 32 621 3600 Fujitsu SMD 2284/2322 821 20480 10 32 621 3600 Fujitsu SMD 2298K 1022 40960 16 67 600 2722 Fujitsu SMD 2333 821 40960 10 67 600 3600 Fujitsu SMD 2344 622 20960 27 68 592 3600 Fujitsu SMD 2351 Eagle 840 28160 20 46 595 3961 Fujitsu SMD 2361 Eagle 840 40960 20 67 600 3600 Fujitsu SMD 2372 (XY450) 743 40960 27 68 593 3600 Fujitsu SMD 2372 (753) 743 40960 27 67 600 3600 Fujitsu SMD 2382 743 49728 27 84 592 3600 Fujitsu SMD 2392 1914 50400 21 83 600 3600 Hitachi SMD DK815-10A 1735 40960 15 67 600 3600 NEC SMD D2363 964 40960 27 67 600 3600

Vendor type Model ncyl pcyl nhead nsect bps rpm ------ ----- ----- ---- ---- ----- ----- --- --- Maxtor ESDI XT4380E 1218 15 35 3600 Maxtor ESDI XT8760E 1616 15 47 3600 Microp. ESDI 1355 1018 8 34 3600 Microp. ESDI 1558 1218 15 35 3600 Toshiba ESDI MK 156F 815 10 34 3600 CDC SCSI 200 1064 9 35 3600 CDC SCSI WnIII 94166-182 963 969 9 35 3597 CDC SCSI WnIII 94161-155 965 9 35 3597 CDC SCSI Wren IV (327Mb) 1545 9 46 3600 CDC SCSI Wren IV (300Mb) 1416 9 46 3600 CDC SCSI Wren V 1543 15 52 3600 CDC SCSI Wn V 94186-383H 1218 1224 15 35 3600 CDC SCSI Wrn V 94181-385 1544 15 51 3592 CDC SCSI Wn VI 94191-766 1630 15 52 3600 CDC SCSI Wn VI 94191-766 1614 1632 15 54 3600 CDC SCSI Wren VII 1956 15 69 3600 CDC SCSI Wn VII94601-1.2 1068 1069 31 61 3600 Connor SCSI CP3100 774 8 32 3575 Connor SCSI CP3200 1290 1348 8 37 3600 Fujitsu SCSI 2249SA 1239 15 35 3600 Fujitsu SCSI 2261 1643 8 53 3600 Fujitsu SCSI 2263SA 1648 15 53 3600 Fujitsu SCSI 2266SA 1642 15 85 3600 Fujitsu SCSI 2614 1332 8 33 3600 Hitachi SCSI DK312-25 1074 12 38 3600 Hitachi SCSI DK312C-20 1030 1081 10 38 3600 Hitachi SCSI DK514C-38 896 14 51 3600 Hitachi SCSI DK515C-78 1354 14 69 3600 HP SCSI HP7959S 1572 12 63 256 3600 Maxtor SCSI XT8760S 1626 15 51 592 3600 Maxtor SCSI XT4380S 1215 15 34 3600 Maxtor SCSI XT4380S(HC) 1221 1224 15 34 3600 Maxtor SCSI LXT200S 1314 7 42 3600 Microp. SCSI 1578-15 1218 15 35 3600 Microp. SCSI 1588-15 1626 15 53 3600 Quantum SCSI 80s 832 6 34 3662 Quantum SCSI 105S 974 6 35 3600 Quantum SCSI 210S 1154 7 50 3600 Seagate SCSI CDC-155 938 9 36 3600 Seagate SCSI CDC-300 1380 9 47 3600 Seagate SCSI CDC-376 1547 9 45 3600 Seagate SCSI CDC-377 1511 9 47 3600 Seagate SCSI CDC-702 1503 15 52 3600 Seagate SCSI CDC-766 1659 15 52 3600 Seagate SCSI ST1239NS 1260 1268 9 35 3600 Sony SCSI 510 5808 10 10 3600 Summus SCSI LightDisk (opt) 18590 18600 1 31 2400

----- SECOND TABLE -----

-----------------------------------------------------------10/2/89----------- | CAP = CAPACITY IN FORMATTED MEGABYTES | CYC = MAXIMUM NUMBER OF CYLINDER | H = NUMBER OF DATA HEADS | RWC = START REDUCED WRITE CURRENT | IF IT'S = CYC + 1 THEN IT IS NOT USED | WPC = START WRITE PRECOMP | IF IT'S = CYC + 1 THEN IT IS NOT USED | ENC = ENCODING METHOD R=RLL, M=MFM | RATE = TRANSFER RATE IN MEGABITS/SEC | ACCESS= AVERAGE ACCESS TIME | SPT = SECTORS/TRACK X 512 bytes | FH = FULL HIGH FORM FACTOR | HH = HALF HIGH FORM FACTOR | R = RLL (run length limited) | N = NRZ (non return to zero) | M = MFM (modified frequency modulation) | SA = STAND ALONE | Z = ZBR ------------------------------------------------------------------------------ ALPS ELECTRIC 800-950-2557 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DRND-10A 3.5" 10 615 2 616 616 M 5 60 MS 17 DRND-20A 3.5" 20 615 4 616 616 M 5 60 MS 17 ST-506 RLL RPO-20A 3.5" 20 615 2 616 616 R 7.5 60 MS 26 DRPO-20D 3.5" 20 615 2 616 616 R 7.5 60 MS 26 ------------------------------------------------------------------------------ AMPEX 213-640-0150 OR 800-231-1036 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS PYXIS-7 5.25 FH 5 320 2 132 132 M 5 90 MS 17 PYXIS-13 5.25 FH 10 320 4 132 132 M 5 90 MS 17 PYXIS-20 5.25 FH 15 320 6 132 132 M 5 90 MS 17 PYXIS-27 5.25 FH 20 320 8 132 132 M 5 90 MS 17 ------------------------------------------------------------------------------ ATASI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3020 17 645 3 320 320 M 5 17 3033 28 645 5 320 320 M 5 17 3046 39 645 7 320 320 M 5 17 3051 43 704 7 359 350 M 5 17 3053 44 733 7 350 - M 5 17 3075 67 1024 8 1025 1025 M 5 17 3085 67 1024 8 - 512 M 5 17 ------------------------------------------------------------------------------ BASF ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 6185 23 440 6 220 220 M 5 17 6186 15 440 4 220 220 M 5 17 6187 8 440 2 220 220 M 5 17 ------------------------------------------------------------------------------ BULL ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D-530 25 987 3 988 988 M 5 17 D-550 43 987 5 988 988 M 5 17 D-570 59 987 7 988 988 M 5 17 ------------------------------------------------------------------------------ C. ITOH 800-227-0315 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS YD-3530 32 731 5 732 732 M 5 17 YD-3540 5.25 HH 45 731 7 732 732 M 5 26 MS 17 SCSI YD-3042 5.25 FH 43 788 4 789 789 R 8.5 26 MS YD-3082 5.25 FH 87 788 8 789 789 R 8.5 26 MS ------------------------------------------------------------------------------ CARDIFF ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS F-3053 3.5" 44 1024 5 - - M 5 20 MS 17 ESDI/SCSI F-3080 3.5" 68 1024 5 - - R/N 7.5 20 MS 26 F-3127 3.5" 109 1024 5 - - R/N 10 20 MS 35 ------------------------------------------------------------------------------ C D C 612-853-8100 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 94244-219 5.25 HH 219 1747 4 1748 1748 R 15 16 MS 94244-383 5.25 HH 383 1747 7 1748 1748 R 15 16 MS 94354-126 111 1072 7 1073 1073 29 94354-160 143 1072 9 1073 1073 29 94354-200 177 1072 9 1073 1073 36 94354-230 211 1272 9 1273 1273 36 ST-506 BJ7D5A 77731614 5.25 FH 23 670 4 671 128 M 5 17 BJ7D5A 77731608 5.25 FH 29 670 5 671 128 M 5 17 BJ7D5A 77731613 733 5 734 128 5 17 94155-21 WREN-1 5.25 FH 21 697 3 698 128 M 5 28 MS 17 94155-25 24 697 4 698 128 M 5 17 94155-28 24 697 4 698 128 M 5 17 94155-36 WREN-1 5.25 FH 36 697 5 698 128 M 5 28 MS 17 94155-38 31 733 5 734 128 M 5 17 94155-48 WREN-2 5.25 FH 40 925 5 926 128 M 5 28 MS 17 94295-51 WREN-2 5.25 FH 43 989 5 990 128 M 5 28 MS 17 94155-57 WREN-2 5.25 FH 48 925 6 926 128 M 5 28 MS 17 94155-67 WREN-2 5.25 FH 56 925 7 926 128 M 5 28 MS 17 94155-77 WREN-2 64 925 8 926 128 M 5 17 94155-85 WREN-2 5.25 FH 71 1024 8 1025 128 M 5 28 MS 17 94155-86 WREN-2 5.25 FH 72 925 9 926 128 M 5 28 MS 17 94205-51 5.25 HH 43 989 5 990 128 M 5 32 MS 17 94335-55 3.5" 46 - 5 - - M 5 25 MS 17 94335-100 3.5" 83 - 9 - - M 5 25 MS 17 94355-55 SWIFT-2 3.5" 46 - 5 - - M 5 16.5 MS 17 94355-100 SWIFT 3.5" 88 1072 9 1073 300 M 5 15 MS 17 ST-506 RLL 94155-135 WREN-2 5.25 HH 115 960 9 961 128 R 7.5 28 MS 26 94205-77 WREN-2 5.25 HH 63 989 5 990 128 R 7.5 28 MS 26 94335-150 3.5" 128 - 9 - - R 7.5 25 MS 26 94355-150 3.5" 133 1072 9 1073 300 R 7.5 15 MS 28 ESDI 94156-48 WREN-2 40 925 5 926 128 N 5 28 MS 94156-67 WREN-2 56 925 7 926 128 N 5 94156-86 WREN-2 72 925 9 926 128 N 5 94166-101 WREN-3 5.25 FH 86 969 5 970 128 N 10 16.5 MS 94166-141 WREN-3 5.25 FH 121 969 7 970 128 N 10 16.5 MS 94166-182 WREN-3 5.25 FH 155 969 9 970 128 N 10 16.5 MS 94181-702 WREN V 5.25 FH 702 1549 15 1550 128 Z 9-15 16 MS 94186-265 WREN V 5.25 FH 265 1412 9 1413 128 94186-324 WREN V 5.25 FH 324 1412 11 1413 128 94186-383 WREN V 5.25 FH 383 1412 13 1413 128 R/N 10 19.5 MS 94186-383H WREN V 5.25 FH 383 1224 15 1225 128 R/N 10 14.5 MS 94186-442 WREN V 5.25 FH 442 1412 15 1413 128 R/N 10 16 MS 94196-766 WREN VI 5.25 FH 766 1632 15 - - R 15 16.5 MS 94216-106 WREN-3 5.25 FH 91 1024 5 1025 128 R/N 10 16.5 MS 94246-182 WRENV1 5.25 HH 182 1453 4 1454 128 R 15 16.0 MS 94246-383 WRENV1 5.25 HH 383 1747 7 1748 128 R 15 16.0 MS 94356-111 SWIFT 3.5" 98 1072 5 1073 1073 R/N 10 34/36 94356-155 SWIFT 3.5" 138 1072 7 1073 1073 R/N 10 15 MS 34/36 94356-200 SWIFT 3.5" 177 1072 9 1073 1073 R/N 10 15 MS 34/36 WREN III 5.25HH 106 969 5 970 123 R/N 10 18 MS SCSI 9-161-86 WREN-3 5.25 FH 86 969 - 970 970 16.5 MS 94161-121 WREN-3 5.25 FH 121 969 - 970 970 16.5 MS 94171-300 WREN-4 5.25 FH 300 1365 9 1366 1366 R 16.5 MS 94171-344 WREN V 5.25 FH 344 1549 9 1550 1550 Z 9-15 17.5 MS 94171-350 WREN IV 5.25 FH 350 1412 9 1550 1550 Z 16.5 MS 94171-376 WREN IV 5.25 FH 376 1549 9 1550 1550 Z 17.5 MS 94181-385H RUNNER 5.25 FH - 15 - - 15.5 10.7 MS 94181-574 WREN V 5.25 FH 574 1549 15 1550 1550 Z 9-15 16 MS 94181-702 WREN V 5.25 FH 702 1549 15 1550 128 Z 9-15 16 MS 94186-383 WREN V 5.25 FH 383 1412 13 1413 128 R/N 10 19.5 MS 94186-383H WREN V 5.25 FH 383 1224 15 1225 128 R/N 10 14.5 MS 94186-442 WREN V 5.25 FH 442 1412 15 1413 128 R/N 10 16 MS 94191-766 WREN VI 5.25 FH 766 1632 15 - - R 15 16.5 MS 94211-91 WREN-3 5.25 FH 91 969 - 970 970 16.5 MS 94211-106 WREN-3 5.25 HH 1024 5 1025 1025 R 10 18 MS 94221-190 WREN V 5.25 HH 190 1547 5 1548 1548 R 10-15 8.3 MS 94211-209 WREN V 5.25 HH 1547 5 1548 1548 R/Z 2.5/4 18 MS 94351-128 SWIFT 3.5" 111 1068 7 1069 1069 36 ASYNC 94351-134 SWIFT 3.5" 134 - 7 - - 10 15 MS 94351-172 SWIFT 3.5" 172 - 9 - - 10 15 MS 94351-160 SWIFT 3.5" 142 1068 9 1069 1069 36 ASYNC 94351-200 SWIFT 3.5" 177 1068 9 1069 1069 36 ASYNC 94351-200S SWIFT 3.5" 177 1068 9 1069 1069 36 SYNC 94351-230S SWIFT 3.5" 211 1272 9 1273 1273 36 SYNC 9720-368 SABRE 8.0 FH 316 1217 10 1218 1218 R/N 14.52 18 MS 9720-500 SABRE 8.0 FH 427 1217 10 1218 1218 R/N 19.72 18 MS 9720-736 SABRE 8.0 FH 637 1635 15 1636 1636 R/N 14.52 16 MS 9720-850 SABRE 8.0 FH 727 1381 15 1382 1382 R/N 19.72 16 MS 9720-1230 SABRE 8.0 FH 1056 1635 15 1636 1636 R/N 24.19 16 MS WREN III 5.25 HH 106 969 5 970 970 R/N 10 18 MS SMD 368 SABRE 8" 368 - 10 - - 1.8 18 MS 500 SABRE 8" 500 - 10 - - 2.4 18 MS 736 SABRE 8" 741 - 15 - - 1.8 16 MS 850 SABRE 8" 851 - 15 - - 2.4 16 MS 1230 SABRE 8" 1236 1635 15 - - 2.4 ------------------------------------------------------------------------------ CENTURY DATA ------------------------------------------------------------------------------ MODEL ESDI CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS CAST-10203E 5.25 FH 55 3 1051 1051 R/N 10 28 MS 35 CAST-10304 5.25 FH 75 1050 4 1051 1051 R/N 10 28 MS 35 CAST-10305 5.25 FH 94 1050 5 1051 1051 R/N 10 28 MS 35 CAST-14404 5.25 HH 114 1590 4 1591 1591 R/N 10 25 MS 35 CAST-14405 5.25 HH 140 1590 5 1591 1591 R/N 10 25 MS 35 CAST14406 5.25 HH 170 1590 6 1591 1591 R/N 10 25 MS 35 CAST24509 5.25 FH 258 1599 9 1600 1600 R/N 10 18 MS 35 CAST24611 5.25 FH 315 1599 11 1600 1600 R/N 10 18 MS 35 CAST24713 5.25 FH 372 1599 13 1600 1600 R/N 10 18 MS 35 SCSI CAST10203S 5.25 FH 55 1050 3 1051 1051 10 28 MS 35 CAST10304S 5.25 FH 75 1050 4 1051 1051 R 10 28 MS 35 CAST10305S 5.25 FH 94 1050 5 1051 1051 R 10 28 MS 35 CAST14404S 5.25 HH 114 1590 4 1591 1591 R 10 25 MS 35 CAST14405S 5.25 HH 140 1590 5 1591 1591 R 10 25 MS 35 CAST14406S 5.25 HH 170 1590 6 1591 1591 R 10 25 MS 35 CAST24509S 5.25 FH 258 1599 9 1600 1600 R 10 18 MS 35 CAST24611S 5.25 FH 315 1599 11 1600 1600 R 10 18 MS 35 CAST24713S 5.25 FH 372 1599 13 1600 1600 R 10 18 MS 35 ------------------------------------------------------------------------------ C M I 818-709-6445 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3426 20 615 4 616 256 M 5 17 5206 5 306 2 307 256 M 5 17 5205 4 256 2 128 128 M 5 17 5410 8 256 4 128 128 M 5 17 5412 10 306 4 307 128 M 5 17 5616 13 256 6 257 257 M 5 17 5619 15 306 6 307 128 M 5 17 6213 11 640 2 641 256 M 5 17 6426 21 640 4 641 256 M 5 17 6640 33 615 6 616 256 M 5 17 7660 50 960 6 961 450 M 5 17 7880 67 960 8 961 450 M 5 17 ------------------------------------------------------------------------------ COGITO 408-942-8262 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS CG-906 5 306 2 128 128 M 5 CG-912 11 306 4 128 128 M 5 PT-912 11 612 2 307 307 M 5 PT-925 21 612 4 307 307 M 5 ------------------------------------------------------------------------------ CONNER PERIPHER 408-433-3340 ------------------------------------------------------------------------------ MODEL AT-BUS CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS CP-342 3.5" 40 805 4 - - R 7.5 29 MS CP-344 3.5" 42 805 4 - - R 29 MS 26/27 VOICE CP-3022 3.5" 21 636 2 - - R 10 27 MS CP-3024 3.5" 21 636 2 - - R 27 MS 33/34 VOICE CP-3044 3.5" 42 1047 2 - - R 25 MS 41 VOICE CP-3102 3.5" 104 776 8 - - R 10 25 MS CP-3104 3.5" 104 776 8 - - R 25 MS 33/34 VOICE CP-2304 3.5" 209 1348 8 - - R <19 MS 39 VOICE SCSI CP-340 3.5" 42 788 4 - - R 7.5 29 MS 26/27 VOICE CP-3020 3.5" 21 636 2 - - R 27 MS 33/34 VOICE CP-3040 3.5" 42 1047 2 - - R 25 MS 41 VOICE CP-3100 3.5" 104 776 8 - - R 10 25 MS 33/34 VOICE CP-3200 3.5" 209 1348 8 - - R <19 MS 39 VOICE ------------------------------------------------------------------------------ CORE INTNL ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS AT 32 5.25 HH 31 733 5 - - M 5 21 MS 17 AT 30 5.25 FH 31 733 5 - - M 5 26 MS 17 AT 40 5.25 FH 40 924 5 - - M 5 26 MS 17 AT 63 5.25 FH 42 988 5 - - M 5 26 MS 17 AT 72 5.25 FH 72 924 9 - - M 5 26 MS 17 OPTIMA 30 5.25 HH 31 733 5 - - M 5 21 MS 17 OPTIMA 40 5.25 HH 41 963 5 - - M 5 26 MS 17 OPTIMA 70 5.25 FH 71 918 9 - - M 5 26 MS 17 ST-506 RLL AT 32 5.25 HH 48 733 5 - - R 7.5 21 MS 26 AT 30 5.25 FH 48 733 5 - - R 7.5 26 MS 26 AT 40 5.25 FH 61 924 5 - - R 7.5 26 MS 26 AT 63 5.25 FH 65 988 5 - - R 7.5 26 MS 26 AT 72 5.25 FH 107 924 9 - - R 7.5 26 MS 26 OPTIMA 30 5.25 HH 48 733 5 - - R 7.5 21 MS 26 OPTIMA 40 5.25 HH 64 963 5 - - R 7.5 26 MS 26 OPTIMA 70 5.25 FH 109 918 9 - - R 7.5 26 MS 26 ESDI HC 40 5.25 FH 40 564 4 - - R/N 10 10 MS 35 HC 90 5.25 HH 91 969 5 - - R/N 10 16 MS 35 HC 150 5.25 FH 156 969 9 - - R/N 10 16 MS 35 HC 260 5.25 FH 260 1212 12 - - R/N 10 25 MS 35 HC 310 5.25 FH 311 1582 12 - - R/N 10 16 MS 35 ------------------------------------------------------------------------------ DISCTRON ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D-503 3 153 2 - - M 5 17 D-504 4 215 2 - - M 5 17 D-506 5 153 4 - - M 5 17 D-507 5 306 2 128 128 M 5 17 D-509 8 215 4 128 128 M 5 17 D-512 11 153 8 - - M 5 17 D-513 11 215 6 128 128 M 5 17 D-514 11 306 4 128 128 M 5 17 D-518 15 215 8 128 128 M 5 17 D-519 16 306 6 128 128 M 5 17 D-526 21 306 8 128 128 M 5 17 ------------------------------------------------------------------------------ DMA ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 306 11 612 2 612 400 M 5 17 REMOV. ------------------------------------------------------------------------------ ELCOH ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DISCACHE10 10 320 4 321 321 M 5 17 DISCACHE20 20 320 8 321 321 M 5 17 ------------------------------------------------------------------------------ FUJI 415-651-0811 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS FK305-26 3.5" 21 615 4 - 616 M 5 50-80MS 17 FK305-39 3.5" 32 615 6 - 616 M 5 50-80MS 17 FK309-26 3.5" 21 615 4 - 616 M 5 50-80MS 17 FK301 10 306 4 307 128 M 5 17 FK302-13 10 612 2 613 307 M 5 17 FK302-26 21 612 4 613 307 M 5 17 FK302-39 32 612 6 613 307 M 5 17 FK303-52 3.5" 40 615 8 - 616 M 5 50-80MS 17 ST-506 RLL FK305-39R 3.5" 32 615 4 - 616 R 7.5 50-80MS 26 FK305-58R 3.5" 49 615 6 - 616 R 7.5 50-80MS 26 FK309-39R 32 615 4 - 616 R 7.5 26 SCSI FK308S-58R 3.5" 45 615 6 - - R 7.5 50-80MS FK308S-39R 3.5" 32 615 4 - 616 R 7.5 50-80MS FK309S-50R 3.5" 41 615 4 - - R 7.5 50-80MS ------------------------------------------------------------------------------ FUJITSU 408-432-1300 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS M2611T 3.5" 45 1334 2 - - R 7.4 <25 MS M2612T 3.5" 90 1334 4 - - R 7.4 <25 MS M2613T 3.5" 135 1334 6 - - R 7.4 <25 MS M2614T 3.5" 180 1334 8 - - R 7.4 <25 MS

ST-506 MFM 2230 AS 5 320 2 321 321 M 5 17 2233 AS 10 320 4 321 321 M 5 17 2234 AS 15 320 6 321 321 M 5 17 2235 AS 20 320 8 321 321 M 5 17 2241 AS 26 754 4 755 755 M 5 17 M2226D2 3.5" 30 615 6 - - M 5 35 MS 17 M2227D2 3.5" 42 615 8 - - M 5 <35 MS 17 M2242AS2 5.25 FH 43 754 7 - - M 5 30 MS 17 M2243AS2 5.25 FH 67 754 11 - - M 5 30 MS 17 M2243T 5.25 HH 68 1186 7 - - M 5 25 MS 17 ST-506 RLL M2225DR 3.5" 32 615 4 - - R 7.5 35 MS 26 M2226DR 3.5" 49 615 6 - - R 7.5 35 MS 26 M2227DR 3.5" 65 615 8 - - R 7.5 35 MS 26 M2243R 5.25 HH 110 1186 7 - - R 7.5 25 MS 26 ESDI 2244E 5.25 FH 73 823 5 - - R/N 1O 25 MS 35 2245E 5.25 FH 120 823 7 - - R/N 10 25 MS 35 M2246E 5.25 FH 172 823 10 - - R/N 10 25 MS 35 M2249 5.25 FH 389 1243 15 - - R 10 18 MS M2263 5.25 FH 778 1658 15 - - R 16 MS SCSI 2244SA 73 823 5 - - R BUF 25 MS 35 16KB M2245SA 120 823 7 - - R BUF 25 MS 35 16KB M2246SA 5.25 FH 171 823 10 - - R BUF 25 MS 35 16KB M2249 5.25 FH 389 1243 15 - - R 10 18 MS M2263 5.25 FH 778 1658 15 - - R 16 MS M2344KS 690 624 27 - - R HSMD 16 MS M2611S 3.5" 45 1334 2 - - R 1.5/2.5 <25 MS M2612S 3.5" 90 1334 4 - - R 1.5/2.5 <25 MS M2613S 3.5" 136 1334 6 - - R 1.5/2.5 <25 MS M2614S 3.5" 182 1334 8 - - R 1.5/2.5 <25 MS ------------------------------------------------------------------------------ HITACHI 415-872-1902 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS DK301-1 3.5" 10 306 4 - - M 5 85 MS 17 DK301-2 3.5" 15 306 6 - - M 5 85 MS 17 DK511-3 5.25 FH 28 699 5 - - M 5 30 MS 17 DK511-5 5.25 FH 40 699 7 - - M 5 30 MS 17 DK511-8 5.25 FH 67 823 10 - - M 5 23 MS 17 DK521-5 5.25 HH 51 823 6 - - M 5 25 MS 17 ESDI DK512-8 5.25 FH 67 823 5 - - R/N 10 23 MS DK512-12 5.25 FH 94 823 7 - - R/N 10 23 MS DK512-17 5.25 FH 134 823 10 - - R/N 10 23 MS DK514-38 5.25 FH 330 903 14 - - R/N 15 16 MS 51 DK522-10 5.25 HH 103 823 6 - - R/N 10 25 MS 36 SCSI DK512C-8 5.25 FH 67 823 5 - - R 10 23 MS DK512C-12 5.25 FH 94 823 7 - - R 10 23 MS DK512C-17 5.25 FH 134 819 10 - - R 10 23 MS 35 DK522C-10 5.25 HH 88 819 6 - - R 10 25 MS 35 ------------------------------------------------------------------------------ IMI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 5006 5 306 2 307 214 M 5 17 5012 10 306 4 307 214 M 5 17 5018 15 306 6 307 214 M 5 17 ------------------------------------------------------------------------------ JCT 503-474-5678 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 100 5.25 HH 5 - - - - M 5 110 MS 17 105 5.25 HH 7 - - - - M 5 110 MS 17 110 5.25 HH 14 - - - - M 5 130 MS 17 120 5.25 HH 20 - - - - M 5 100 MS 17 COMMODORE 1000 5 - - - - M SA 1005 7 - - - - M SA 1010 14 - - - - M SA ------------------------------------------------------------------------------ KALOK CORP. 408-747-1315 ------------------------------------------------------------------------------ MODEL AT-BUS CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS KL343 OCTAGON 40 40 644 4 645 645 R 8 25 MS 30 ST-506 MFM KL320 OCTAGON 20 3.5" 20 615 4 616 300 M 5 48 MS 17 ST-506 RLL KL330 OCTAGON 30 32 616 4 617 617 R 7.5 48 MS 26 PS/2 KL332 OCTAGON 30 40 615 4 - - R 8 48 MS 30 SCSI KL341 OCTAGON 40 40 644 4 - - R 8 25 MS 30 ------------------------------------------------------------------------------ KYOCERA 619-576-2600 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS KC20A/ KC20B/ 3.5" 20 616 4 - - M 5 65 MS 17 ST-506 RLL KC30A KC30B 3.5" 30 615 4 - - R 7.5 65 MS 26 ------------------------------------------------------------------------------ LA PINE ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 3522 10 306 4 307 - M 5 17 LT 10 10 615 2 616 - M 5 17 LT 20 20 615 4 616 - M 5 17 LT 200 20 614 4 615 - M 5 17 LT 2000 20 614 4 615 - M 5 17 ST-506 RLL LT 300 32 614 4 615 - R 7.5 26 ------------------------------------------------------------------------------ MAXTOR 408-432-1700 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS XT-1065 5.25 FH 56 918 7 919 919 M 5 28 MS 17 XT-1085 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 XT-1105 5.25 FH 87 918 11 919 919 M 5 27 MS 17 XT-1140 5.25 FH 119 918 15 919 919 M 5 27 MS 17 XT-2085 5.25 FH 74 1224 7 1225 1225 M 5 30 MS 17 XT-2140 5.25 FH 117 1224 11 1225 1225 M 5 30 MS 17 XT-2190 5.25 FH 159 1224 15 1225 1225 M 5 29 MS 17 ST-506 RLL XT-1120R 5.25 FH 104 1024 8 - - R 7.5 27 MS 25 XT-1240R 5.25 FH 196 1024 15 - - R 7.5 27 MS 25 ESDI XT-4170E 5.25 FH 157 1224 7 - - R/N 10 14 MS 35/36 XT-4175 5.25 FH 150 1224 7 - - R/N 10 27 MS 35 XT-4380E 5.25 FH 338 1224 15 - - R/N 10 16 MS 35/36 XT-8380E 5.25 FH 360 1632 8 - - R/N 15 14.5 MS 54 XT-8760E 5.25 FH 676 1632 15 - - R/N 15 16.5 MS 54 SCSI XT-3170 5.25 FH 146 1224 9 - - R 15 30 MS 48 XT-3280 5.25 FH 1224 15 - - R 15 30 MS XT-3380 5.25 FH - 15 - - R 15 27 MS XT-4170S 5.25 FH 157 1224 7 - - R 10 14 MS 36 XT-4280S 5.25 FH 338 1224 11 - - R 10 27 MS 36 XT-4380S 5.25 FH 337 1224 15 - - R 10 16 MS 36 XT-8380S 5.25 FH 360 1632 8 - - R 15 14.5 MS 54 XT-8760S 5.25 FH 676 1632 15 - - R 15 16.5 MS 54 LXT-200 3.25" 201 - 7 - - 15 MS LXT-100 3.25" 96 - 8 - - 27 MS RXT-800S 5.25 FH 786 - 2 - - WORM OPTICAL TAHITI 5.25 FH 650 - 2 - - ERASABLE OPTICAL ------------------------------------------------------------------------------ MEMOREX ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 321 5 320 2 321 128 M 5 17 322 10 320 4 321 128 M 5 17 323 15 320 6 321 128 M 5 17 324 20 320 8 321 128 M 5 17 450 10 612 2 321 350 M 5 17 512 25 961 3 321 480 M 5 17 513 41 961 5 321 480 M 5 17 514 58 961 7 321 480 M 5 17 ------------------------------------------------------------------------------ MICROPOLIS 818-709-3300 ------------------------------------------------------------------------------

MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 1743-5 3.5" 112 1140 5 1141 1141 15 MS 28-48 1744-6 3.5" 135 1140 6 1141 1141 15 MS 28-48 1744-7 3.5" 157 1140 7 1141 1141 15 MS 28-48 1745-8 3.5" 180 1140 8 1141 1141 15 MS 28-48 1745-9 3.5" 202 1140 9 1141 1141 15 MS 28-48

ST-506 MFM 1302 5.25 FH 21 830 3 831 831 M 5 17 1303 5.25 FH 36 830 5 831 831 M 5 17 1304 5.25 FH 43 830 6 831 831 M 5 17 1323 5.25 FH 35 1024 4 1025 1025 M 5 28 MS 17 1323A 5.25 FH 44 1024 5 1025 1025 M 5 28 MS 17 1324 5.25 FH 53 1024 6 1025 1025 M 5 28 MS 17 1324A 5.25 FH 62 1024 7 1025 1025 M 5 28 MS 17 1325 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 1333A 5.25 FH 44 1024 5 1025 1025 M 5 28 MS 17 1334 5.25 FH 53 1024 6 1025 1025 M 5 28 MS 17 1335 5.25 FH 71 1024 8 1025 1025 M 5 28 MS 17 ESDI 1352 1024 2 1025 1025 R/N 10 23 MS 36 1352A 41 1024 3 1025 1025 R/N 10 23 MS 36 1353 5.25 FH 75 1024 4 1025 1025 R/N 10 23 MS 36 (HS) 1353A 5.25 FH 94 1024 5 1025 1025 R/N 10 23 MS 36 (HS) 1354 5.25 FH 113 1024 6 1025 1025 R/N 10 23 MS 36 (HS) 1354A 5.25 FH 132 1024 7 1025 1025 R/N 10 23 MS 36 (HS) 1355 5.25 FH 150 1024 8 1025 1025 R/N 10 23 MS 36 (HS) 1516-10S 5.25 FH 678 1840 10 1841 1841 R/N 20 13.5 MS 72 1517-13 5.25 FH 922 1925 13 1926 1926 R/N 20 14 MS 72 1518-14 5.25 FH 993 1925 14 1926 1926 R/N 20 14 MS 72 1518-15 5.25 FH 1064 1925 15 1926 1926 R/N 20 14 MS 72 1556-11 5.25 FH 248 1224 11 1225 1225 R/N 10 18 MS 36 1557-12 5.25 FH 270 1224 12 1225 1225 R/N 10 18 MS 36 1557-13 5.25 FH 293 1224 13 1225 1225 R/N 10 18 MS 36 1557-14 5.25 FH 315 1224 14 1225 1225 R/N 10 18 MS 36 1557-15 5.25 FH 338 1224 15 1225 1225 R/N 10 18 MS 36 1566-11 5.25 FH 496 1632 11 1633 1633 R/N 15 16 MS 54 1567-12 5.25 FH 541 1632 12 1633 1633 R/N 15 16 MS 54 1567-13 5.25 FH 586 1632 13 1633 1633 R/N 15 16 MS 54 1568-14 5.25 FH 631 1632 14 1633 1633 R/N 15 16 MS 54 1568-15 5.25 FH 676 1632 15 1633 1633 R/N 15 16 MS 54 1653-4 5.25 HH 92 1249 4 1250 1250 R/N 10 16 MS 36 1653-5 5.25 HH 115 1249 5 1250 1250 R/N 10 16 MS 36 1654-6 5.25 HH 138 1249 6 1250 1250 R/N 10 16 MS 36 1654-7 5.25 FH 161 1249 7 1250 1250 R/N 10 16 MS 36 1663-4 5.25 HH 197 1780 4 1781 1781 R/N 15 14 MS 1663-5 5.25 HH 246 1780 5 1781 1781 R/N 15 14 MS 1664-6 5.25 HH 295 1780 6 1781 1781 R/N 15 14 MS 1664-7 5.25 HH 345 1780 7 1781 1781 R/N 15 14 MS SCSI 1373 5.25 FH 72 1016 4 1017 1017 1.25 BUF 23 MS 36 16KB CCS 1373A 5.25 FH 91 1016 5 1017 1017 1.25 BUF 23 MS 36 16KB CCS 1374 5.25 FH 109 1016 6 1017 1017 1.25 BUF 23 MS 36 16KB CCS 1374A 5.25 FH 127 1016 7 1017 1017 1.25 BUF 23 MS 36 16KB CCS 1375 5.25 FH 145 1016 8 1017 1017 1.25 BUF 23 MS 36 16KB CCS 1576-11 5.25 FH 243 1220 11 1221 1221 1.6 BUF 18 MS 36 64KB CCS 1577-12 5.25 FH 266 1220 12 1221 1221 1.6 BUF 18 MS 36 64KB CCS 1577-13 5.25 FH 287 1220 13 1221 1221 1.6 BUF 18 MS 36 64KB CCS 1578-14 5.25 FH 310 1220 14 1221 1221 1.6 BUF 18 MS 36 64KB CCS 1578-15 5.25 FH 332 1220 15 1221 1221 1.6 BUF 18 MS 36 64KB CCS 1586-11 5.25 FH 490 1628 11 1629 1629 R 15 16 MS 54 1587-12 5.25 FH 535 1628 12 1629 1629 R 15 16 MS 54 1587-13 5.25 FH 579 1628 13 1629 1629 R 15 16 MS 54 1588-14 5.25 FH 624 1628 14 1629 1629 R 15 16 MS 54 1588-15 5.25 FH 668 1628 15 1629 1629 R 15 16 MS 54 1596-10S 5.25 FH 668 1834 10 1835 1835 13.5 MS 72 1597-13 5.25 FH 909 1919 13 1920 1920 14 MS 72 1598-14 5.25 FH 979 1919 14 1920 1920 14 MS 72 1598-15 5.25 FH 1049 1919 15 1920 1920 14 MS 72 1673-4 5.25 HH 90 1249 4 1250 1250 R 10 16 MS 1673-5 5.25 HH 112 1249 5 1250 1250 R 10 16 MS 1674-6 5.25 HH 135 1249 6 1250 1250 R 10 16 MS 1674-7 5.25 HH 158 1249 7 1250 1250 R 10 16 MS 1683-4 5.25 HH 193 1776 4 1777 1777 14 MS 54 1683-5 5.25 HH 242 1776 5 1777 1777 14 MS 54 1684-6 5.25 HH 291 1776 6 1777 1777 14 MS 54 1684-7 5.25 HH 340 1776 7 1777 1777 14 MS 54 1773-5 3.5" 112 1140 5 1141 1441 15 MS 28-48 1774-6 3.5" 135 1140 6 1141 1141 15 MS 28-48 1774-7 3.5" 157 1140 7 1141 1141 15 MS 28-48 1775-8 3.5" 180 1140 8 1141 1141 15 MS 28-48 1775-9 3.5" 202 1140 9 1141 1141 15 MS 28-48 ------------------------------------------------------------------------------ MICROSCIENCE 408-730-5965 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 7040 3.5" 47 855 3 - - R 10 18 MS 36 7100 3.5" 110 855 7 - - R 10 18 MS 36 ST-506 MFM HH 312 10 306 4 307 307 M 5 17 HH 315 10 306 4 307 307 M 5 17 HH 325 21 612 4 613 613 M 5 80 MS 17 HH 612 11 306 4 307 307 M 5 17 HH 625 21 612 4 613 613 M 5 17 HH 712 5.25 HH 10 612 2 613 613 M 5 105 MS 17 HH 725 5.25 HH 21 612 4 613 613 M 5 105 MS 17 HH 825 5.25 HH 21 615 4 616 616 M 5 65 MS 17 HH 1050 5.25 HH 44 1024 5 1025 1025 M 5 28 MS 17 HH-1075 5.25 HH 65 1024 7 1025 1025 M 5 28 MS 17 HH-1090 5.25 HH 80 1314 7 1315 1315 M 5 28 MS 17 4050 3.5" 44 1024 5 1025 1025 M 5 18 MS 17 ST-506 RLL HH 330 32 612 4 613 613 R 7.5 26 HH 738 5.25 HH 32 612 4 613 613 R 7.5 105 MS 26 HH 830 5.25 HH 38 615 4 616 616 R 7.5 65 MS 26 HH 1060 5.25 HH 66 1024 5 1025 1025 R 7.5 28 MS 26 HH-1095 5.25 HH 95 1024 7 1025 1025 R 7.5 28 MS 26 HH-1120 5.25 HH 122 1314 7 1315 1315 R 7.5 28 MS 26 ESDI HH 2085 - - - - R/N HH-2120 5.25 HH 121 1024 7 - - R/N 10 28 MS 33 5100 3.5" 110 855 7 - - R 10 18 MS 36 SCSI HH 1080 - - - - R HH-3120 5.25 HH 122 1314 7 - - R 7.5 28 MS 26 6100 3.5" 110 855 7 - - R 10 18 MS 36 ------------------------------------------------------------------------------ MINISCRIBE 303-651-6000 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 8225AT 3.5" 21 745 2 - - 8 28 MS 28 8051AT 3.5" 42 745 4 - - 8 28 MS 8450AT 3.5" 42 745 4 - - 8 40 MS 28 XT 8225XT 3.5" 21 805 2 - - 7.5 68 MS 26 8425XT 3.5" 21 615 4 - - 8438XT 3.5" 31 615 4 - - 8450XT 3.5" 42 805 4 - - 7.5 45 MS 26 ST-506 MFM 1006 5 306 2 153 128 M 5 17 1012 10 306 4 153 128 M 5 17 2006 5 306 2 307 128 M 5 17 2012 11 306 4 307 128 M 5 17 3053 5.25 HH 44 1024 5 1025 512 M 5 25 MS 17 3085 5.25 HH 71 1170 7 1171 512 M 5 <20 MS 17 3212 5.25 HH 11 612 2 613 128 M 5 85 MS 17 3212 PLUS 5.25 HH 11 612 2 613 128 M 5 53 MS 17 3412 11 306 4 307 128 M 5 17 3425 5.25 HH 21 612 4 613 128 M 5 85 MS 17 3425 PLUS 5.25 HH 21 612 4 613 128 M 5 53 MS 17 3650 5.25 HH 42 809 6 810 128 M 5 61 MS 17 3650F 5.25 HH 42 809 6 810 128 M 5 46 MS 17 4010 8 480 2 481 128 M 5 17 4020 17 480 4 481 128 M 5 17 5330 25 480 6 481 128 M 5 17 5338 32 612 6 613 128 M 5 17 5440 32 480 8 481 128 M 5 17 5451 43 612 8 613 128 M 5 17 6032 5.25 FH 26 1024 3 1025 512 M 5 28 MS 17 6053 5.25 FH 44 1024 5 1025 512 M 5 28 MS 17 6074 5.25 FH 62 1024 7 1025 512 M 5 28 MS 17 6085 5.25 FH 71 1024 8 1025 512 M 5 28 MS 17 6212 10 612 2 613 128 M 5 17 7426 21 612 4 613 128 M 5 17 8212 11 612 2 613 128 M 5 17 8412 10 306 4 307 128 M 5 17 8425 3.5" 21 615 4 616 128 M 5 68 MS 17 8425F 3.5" 21 615 4 616 128 M 5 40 MS 17 ST-506 RLL 3438 5.25 HH 32 612 4 613 128 R 7.5 85 MS 26 3438 PLUS 5.25 HH 32 612 4 613 128 R 7.5 53 MS 26 3675 5.25 HH 63 809 6 810 128 R 7.5 61 MS 26 6079 5.25 FH 68 1024 5 1025 512 R 7.5 28 MS 26 6128 5.25 FH 110 1024 8 1025 512 R 7.5 28 MS 26 8225 3.5" 20 771 2 772 128 R 7.5 26 8434F 3.5" 32 615 4 616 128 R 7.5 40 MS 26 8438 3.5" 32 615 4 616 128 R 7.5 68 MS 26 8438F 3.5" 32 615 4 616 128 R 7.5 40 MS 26 8450 3.5" 40 771 4 772 128 R 7.5 26 ESDI 3085E 5.25 HH 72 1270 3 1271 512 10.56 17 MS 3130E 5.25 HH 112 1250 5 1251 512 10 17 MS 3180E 5.25 HH 157 1250 7 1251 512 10 17 MS 9380E 5.25 FH 338 1224 14 1225 512 10 17 MS 9424E 5.25 FH 360 1661 8 1662 512 15 17 MS 9780E 5.25 FH 676 1661 15 1662 512 15 17 MS ESDI/SCSI 9230 5.25 FH 203 1224 9 1225 512 R 10 16 MS 9380 5.25 FH 338 1224 15 1225 512 R 10 16 MS SCSI 3085S 5.25 HH 72 1255 3 1256 512 10.56 17 MS 3130S 5.25 HH 115 1255 5 1256 512 12 17 MS 3180S 5.25 HH 160 1255 7 1256 512 12 17 MS 8051S 3.5" 45 793 4 794 128 8 28 MS 28 8425S 3.5" 21 612 4 613 128 R 5 68 MS 9380S 5.25 FH 347 1224 15 1225 512 10 16 MS 9424S 5.25 FH 355 1661 8 1662 512 15 17 MS 9780S 5.25 FH 668 1661 15 1662 512 15 17 MS ------------------------------------------------------------------------------ MITSUBISHI 213-515-3993 x460 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS MR521 5.25 HH 10 612 2 - - M 5 85 MS 17 MR522 5.25 HH 20 612 4 - - M 5 85 MS 17 MR535 5.25 HH 42 977 5 300 300 M 5 28 MS 17 ST-506 RLL MR535 5.25 HH 65 977 5 300 300 R 7.5 28 MS 26

------------------------------------------------------------------------------ MMI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS M 112 3.5" 10 306 4 - 128 M 5 75 MS 17 BRKT M 106 3.5" 5 306 2 - 128 M 5 75 MS 17 BRKT M 125 3.5" 20 306 8 - 128 M 5 75 MS 17 BRKT M 306 3.5" 5 306 2 - 128 M 5 75 MS 17 BRKT M 212 5.25 HH 10 306 4 - 128 M 5 75 MS 17 M 225 5.25 HH 20 306 8 - 128 M 5 75 MS 17 M 312 5.25 HH 10 306 4 - 128 M 5 75 MS 17 M 325 5.25 HH 20 306 8 - 128 M 5 75 MS 17 ------------------------------------------------------------------------------ N E C 800-227-9001 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS D3126 3.5" 20 615 4 616 256 M 5 85 MS 17 D3146H 3.5" 40 615 8 - - M 5 35 MS 32 256B SECT D3142 3.5" 42 642 8 - - M 5 28 MS 32 256B SECT D5124 5.25 HH 10 309 4 310 310 M 5 85 MS 17 D5126 5.25 HH 20 612 4 613 - M 5 85 MS 17 D5126H 20 612 4 613 - M 5 40 MS 17 D5146 5.25 HH 40 615 8 616 - M 5 85 MS 17 D5146H 5,25 HH 40 615 8 616 - M 5 40 MS 17 ESDI D5652 5.25 HH 143 823 10 - - R/N 10 23 MS D5655 5.25 HH 153 1224 7 - - R/N 18 MS 35 ------------------------------------------------------------------------------ NEWBURY DATA 213-372-3775 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS NDR 340 3.5" 42 615 8 - - M 40 MS NDR 1065 5.25 FH 55 918 7 - - M 25 MS NDR 1085 5.25 FH 71 1025 8 - - M 26 MS NDR 1105 5.25 FH 87 918 11 - - M 25 MS NDR 1140 5.25 FH 105 918 15 - - M 25 MS NDR 2190 5.25 FH 191 918 15 - - M 28 MS ESDI NDR 4175 5.25 FH 179 1224 7 - - R/N 10 28 MS 36 NDR 4380 5.25 FH 384 1224 15 - - R/N 10 28 MS 36 SCSI NDR 3170S 5.25 FH 146 1224 9 - - R 7.5 28 MS 26 NDR 3280S 5.25 FH 244 1224 15 - - R 7.5 28 MS 26 NDR 4380S 5.25 FH 319 1224 15 - - R 10 28 MS 34 ------------------------------------------------------------------------------ OKIDATA ------------------------------------------------------------------------------ MODEL ST-506 RLL CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS OD526 31 640 4 651 651 R 7.5 26 OD540 47 640 6 651 651 R 7.5 26 ------------------------------------------------------------------------------ OLIVETTI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS HD662/11 10 612 2 - - M 5 17 HD662/12 20 612 4 - - M 5 17 ------------------------------------------------------------------------------ OTARI ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS C 214 10 306 4 128 128 M 5 17 C 519 15 306 6 128 128 M 5 17 C 526 21 306 8 128 128 M 5 17 ------------------------------------------------------------------------------ PANASONIC 408-262-2200 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS JU-116 3.5" 20 615 4 616 616 M 5 85 MS 17 JU-128 3.5" 42 733 7 734 734 M 5 35 MS 17 ------------------------------------------------------------------------------ PRIAM 408-434-9300 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS V-150 42 987 5 988 988 M 5 17 V-160 50 1166 5 1167 1167 M 5 17 V-170 60 987 7 988 988 M 5 17 V-185 71 1166 7 1167 1167 M 5 17 502 46 755 7 756 756 M 5 17 504 46 755 7 756 756 M 5 17 514 5.25 FH 117 1224 11 1225 1225 M 5 22 MS 17 519 5.25 FH 160 1224 15 1225 1225 M 5 22 MS 17 ED40 5.25 FH 42 1018 5 - - M 5 23 MS 17 ED60 5.25 FH 59 1018 7 - - M 5 23 MS 17 ED130 5.25 FH 132 1218 15 - - M 5 13 MS 17 ID45 5.25 FH 44 1018 5 - - M 5 23 MS 17 ID45H 5.25 HH 44 1018 5 - - M 5 25 MS 17 ID62 5.25 FH 62 1018 7 - - M 5 23 MS 17 ID130 5.25 FH 132 1218 15 - - M 5 13 MS 17 ST-506 RLL V-130 39 987 3 988 988 R 7.5 26 V-170 91 987 7 988 988 R 7.5 26 ESDI 617 5.25 FH 153 1225 7 1226 1226 R/N 10 20 MS 628 5.25 FH 241 1225 11 1226 1226 R/N 10 20 MS 638 5.25 FH 329 1225 15 1226 1226 R/N 10 20 MS ED120 5.25 HH 121 1017 7 - - - 10 28 MS 33/35 ED150 5.25 HH 159 1268 7 - - - 10 28 MS 33/35 ED250 5.25 FH 246 1218 11 - - - 10 18 MS 36 ED250 5.25 FH 241 1195 11 - - - 10 18 MS 36 PS/2 ONLY ED330 5.25 FH 336 1218 15 - - - 10 18 MS 36 ED330 5.25 FH 330 1195 15 - - - 10 18 MS 36 PS/2 ONLY ID120 5.25 HH 121 1017 7 - - - 10 28 MS 33/35 ID150 5.25 HH 159 1268 7 - - - 10 28 MS 33/35 ID160 5.25 FH 156 1218 7 - - - 10 18 MS 36 ID160 5.25 FH 152 1195 7 - - - 10 18 MS 36 PS/2 ONLY ID250 5.25 FH 246 1218 11 - - - 10 18 MS 36 ID250 5.25 FH 241 1195 11 - - - 10 18 MS 36 PS/2 ONLY ID330 5.25 FH 336 1218 15 - - - 10 18 MS 36 ID330 5.25 FH 330 1195 15 - - - 10 18 MS 36 PS/2 ONLY SCSI 717 5.25 FH 153 1225 7 1226 1226 R 10 20 MS 728 5.25 FH 241 1225 11 1226 1226 R 10 20 MS 738 5.25 FH 329 1225 15 1226 1226 R 10 20 MS ED160 5.25 FH 158 1218 7 - - - 10 18 MS 36 ED250 5.25 FH 248 1218 11 - - - 10 18 MS 36 ED330 5.25 FH 338 1218 15 - - - 10 18 MS 36 ID160 5.25 FH 158 1218 7 - - - 10 18 MS 36 ID250 5.25 FH 248 1218 11 - - - 10 18 MS 36 ID330 5.25 FH 338 1218 15 - - - 10 18 MS 36

------------------------------------------------------------------------------ PTI 805-581-1000 ------------------------------------------------------------------------------ MODEL AT-BUS CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS PT-238A 3.5" 32 615 4 - - R 7.5 35 MS PT-251A 3.5" 43 820 4 - - R 7.5 35 MS PT-357A 3.5" 49 615 6 - - R 7.5 35 MS PT-376A 3.5" 65 820 6 - - R 7.5 35 MS ST-506 MFM PT-225 3.5" 21 615 4 - - M 5 35 MS 17 PT-234 3.5" 28 820 4 - - M 5 35 MS 17 PT-338 3.5" 32 615 6 - - M 5 35 MS 17 PT-351 3.5" 42 820 6 - - M 5 35 MS 17 ST-506 RLL PT-238R 3.5" 32 615 4 - - R 7.5 35 MS 26 PT-251R 3.5" 43 820 4 - - R 7.5 35 MS 26 PT-357R 3.5" 49 615 6 - - R 7.5 35 MS 26 PT-376R 3.5" 65 820 6 - - R 7.5 35 MS 26 PT-4102R 3.5" 87 820 8 - - R 7.5 26 SCSI PT-238S 3.5" 32 615 4 - - R 7.5 35 MS PT-251S 3.5" 43 820 4 - - R 7.5 35 MS PT-357S 3.5" 49 615 6 - - R 7.5 35 MS PT-376S 3.5" 65 820 6 - - R 7.5 35 MS ------------------------------------------------------------------------------ QUANTUM 408-262-1100 ------------------------------------------------------------------------------ MODEL AT-BUS CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS PRO40 3.5" 42 - - - - - - 19 MS PRO80 3.5" 84 - - - - - - 19 MS PRO120 3.5" 120 - - - - - - 19 MS PRO170 3.5" 168 - - - - - - 19 MS ST-506 Q-510 8 512 2 256 256 M 5 17 Q-520 18 512 4 256 513 M 5 17 Q-530 27 512 6 256 513 M 5 17 Q-540 36 512 8 256 513 M 5 17 ESDI PRO100 3.5" 103 - - - - - - 19 MS PRO145 3.5" 145 - - - - - - 19 MS SCSI Q-250 5.25 HH 53 823 4 - - R 10 26 MS Q-280 5.25 HH 80 823 6 - - R 10 26 MS Q-160 5.25 HH 200 - 12 - - R 10 26 MS PRO40 3.5" 42 - - - - - - 19 MS PRO80 3.5" 84 - - - - - - 19 MS PRO120 3.5" 120 - - - - - - 19 MS PRO170 3.5" 168 - - - - - - 19 MS ------------------------------------------------------------------------------ RICOH SYS ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS RH-5130 10 612 2 613 400 M 5 85 MS 17 RH-5260 10 615 2 - - M 5 85 MS 17 REMOV. SCSI RH-5261 10 612 2 - - M 5 85 MS REMOV. ------------------------------------------------------------------------------ RODIME 407-997-0774 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS RO 101 5.25 FH 6 192 2 96 192 M 5 17 RO 102 5.25 FH 12 192 4 96 192 M 5 17 RO 103 5.25 FH 18 192 6 96 192 M 5 55 MS 17 RO 104 5.25 FH 24 192 8 96 192 M 5 17 RO 201 5.25 FH 5 321 2 132 300 M 5 85 MS 17 RO 201E 5.25 FH 11 640 2 264 300 M 5 55 MS 17 RO 202 5.25 HH 10 321 4 132 300 M 5 85 MS 17 RO 202E 5.25 FH 21 640 4 264 300 M 5 55 MS 17 RO 203 5.25 HH 15 321 6 132 300 M 5 85 MS 17 RO 203E 5.25 FH 32 640 6 264 300 M 5 55 MS 17 RO 204 5.25 FH 21 320 8 132 300 M 5 85 MS 17 RO 204E 5.25 FH 43 640 8 264 300 M 5 55 MS 17 RO 251 5.25 HH 5 306 2 307 307 M 5 85 MS 17 RO 252 5.25 HH 11 306 4 64 128 M 5 85 MS 17 RO 351 5 306 2 307 307 M 5 85 MS 17 RO 352 3.5" 11 306 4 64 128 M 5 85 MS 17 RO 365 3.5" 21 612 4 613 613 M 5 17 RO 3045 37 872 5 873 - M 5 28 MS 17 RO 3055 45 872 6 873 - M 5 28 MS 17 RO 3065 53 872 7 - - M 5 28 MS 17 RO 5065 5.25 HH 63 - 5 - - M 5 28 MS 17 RO 5090 5.25 HH 89 1224 7 - - M 5 28 MS 17 SCSI RO 652A 20 - - - - 85 MS RO 652B 20 306 4 - - R 85 MS RO 752A 5.25 HH 25 - - - - 85 MS RO 3070S 71 - - - - 28 MS RO 3085S 85 750 7 - - R 28 MS RO 3057S 45 680 5 - - R 28 MS RO 5040 38 - 3 - - M 5 28 MS RO 5075S 5.25 HH 76 - - - - 28 MS RO 5125S 5.25 HH 127 1219 5 - - R 28 MS RO 5180S 5.25 HH 178 1219 7 - - 28 MS ------------------------------------------------------------------------------ SEAGATE 800-468-3472 ------------------------------------------------------------------------------ MODEL AT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENT ST125A 3.5" 21 404 4 - - 7.5 40 MS 26 ST125A-1 3.5" 21 404 4 - - 7.5 28 MS 26 ST138A 3.5" 32 604 4 - - 7.5 40 MS 26 ST138A-1 3.5" 32 604 4 - - 7.5 28 MS 26 ST157A 3.5" 43 539 6 - - 7.5 40 MS 26 ST157A-1 3.5" 43 539 6 - - 7.5 28 MS 26 ST-506 MFM ST125 3.5" 21 615 4 616 616 M 5 40 MS 17 ST125-1 3.5" 21 615 4 616 616 M 5 28 MS 17 ST138 3.5" 32 615 6 616 616 M 5 40 MS 17 ST138-1 3.5" 32 615 6 616 616 M 5 28 MS 17 ST151 3.5" 42 977 5 978 978 5 24 MS 17 ST206 5.25 FH 5 306 2 307 128 M 5 17 ST212 5.25 FH 10 306 4 307 128 M 5 17 ST213 5.25 FH 10 615 2 613 307 M 5 17 ST225 5.25 HH 21 615 4 616 616 M 5 65 MS 17 ST251 5.25 HH 42 820 6 821 821 M 5.0 40 MS 17 ST251-1 5.25 HH 42 820 6 821 821 M 5.0 28 MS 17 ST406 5.25 FH 5 306 2 307 128 M 5 17 ST412 5.25 FH 10 306 4 307 128 M 5 17 ST419 5.25 FH 15 306 6 307 128 M 5 17 ST425 5.25 FH 21 306 8 307 128 M 5 17 ST506 5.25 FH 5 153 4 128 128 M 5 17 ST706 5.25 FH 5 306 2 307 128 M 5 17 ST4026 5.25 FH 21 615 4 616 307 M 5 17 ST4038 5.25 HH 31 733 5 734 367 M 5 40 MS 17 ST4051 5.25 FH 42 977 5 978 498 M 5 40 MS 17 ST4053 5.25 FH 44 1024 5 1025 1025 M 5 28 MS 17 ST4096 5.25 FH 80 1024 9 1025 1025 M 5 28 MS 17 ST-506 RLL ST138R 3.5" 32 615 4 616 616 R 7.5 40 MS 26 ST138R-1 3.5" 32 615 4 616 616 R 7.5 28 MS 26 ST157R 3.5" 49 615 6 616 616 R 7.5 40 MS 26 ST157R-1 3.5" 49 615 6 616 616 R 7.5 28 MS 26 ST225R 5.25 HH 21 667 2 668 668 7.5 70 MS 31 ST238R 5.25 HH 32 615 4 616 616 R 7.5 65 MS 26 ST250R 5.25 HH 42 667 4 668 668 7.5 70 MS 31 ST251R 5.25 HH 43 820 4 821 821 R 7.5 40 MS 26 ST277R 5.25 HH 65 820 6 821 821 R 7.5 40 MS 26 ST4077R 5.25 FH 65 1024 5 1025 1025 R 7.5 28 MS 26 ST4144R 5.25 FH 122 1024 9 1025 1025 R 7.5 28 MS 26 ESDI ST4192E 5.25 FH 169 1147 8 1148 1148 R/N 10 17 MS 36 SCSI ST125N 3.5" 21 407 4 408 408 7.5 40 MS 26 ST125N-1 3.5" 21 407 4 408 408 7.5 28 MS 26 ST138N 3.5" 32 613 4 614 614 R 10 40 MS 35 ST138N-1 3.5" 32 613 4 614 614 R 10 28 MS 35 ST157N 3.5" 48 613 6 614 614 R 10 40 MS 26 ST157N-1 3.5" 48 613 6 614 614 R 10 28 MS 26 ST177N 3.5" 60 921 5 922 922 7.5 24 MS 26 ST225N 5.25 HH 21 615 4 616 616 M 5 65 MS 17 ST251N 5.25 HH 43 820 4 821 821 R 7.5 40 MS 26 ST251N-1 5.25 HH 43 630 4 631 631 R 10 28 MS 34 ST277N 5.25 HH 64 820 6 821 821 R 7.5 40 MS 26 ST277N-1 5.25 HH 64 628 6 629 629 R 10 28 MS 34 ST296N 5.25 HH 85 820 6 821 821 R 10 28 MS 34 ST1096N 3.5" 83 906 7 907 907 7.5 24 MS 26 ST4077N 5.25 FH 67 1024 5 1025 1025 R 7.5 28 MS 26 ST4192N 5.25 FH 168 1147 8 1148 1148 R 10 17 MS 36 ------------------------------------------------------------------------------ SHUGART ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 604 5 160 4 128 128 M 5 17 606 7 160 6 128 128 M 5 17 612 11 306 4 307 128 M 5 17 706 6 320 2 321 128 M 5 17 712 11 320 4 321 128 M 5 17 ------------------------------------------------------------------------------ SIEMENS 818-706-8872 ------------------------------------------------------------------------------ MODEL ESDI CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 1200 5.25 FH 174 1216 8 - - R/N 10 25 MS 1300 5.25 FH 261 1216 12 - - R/N 10 25 MS 2300 5.25 FH 261 1216 12 - - R/N 10 25 MS 2200 5.25 FH 174 1216 8 - - R/N 10 25 MS 5710 655 - 15 - - R/N 15 16 MS SCSI 5720 655 - 15 - - 16 MS ------------------------------------------------------------------------------ SYQUEST 415-490-7511 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS SQ 306RD 5 306 2 307 307 M 5 17 REMOV. SQ 312RD 10 615 2 616 616 M 5 17 REMOV. SQ 325F 20 615 4 616 616 M 5 17 SQ 338F 30 615 6 616 616 M 5 17 SQ 340AF 38 640 6 616 616 M 5 17 ------------------------------------------------------------------------------ TANDON WD 805-523-0340 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS TM 252 10 306 4 307 307 M 5 17 TM 261 10 615 2 616 616 M 5 17 TM 262 21 615 4 616 616 M 5 17 TM 361 10 615 2 616 616 M 5 17 TM 362 21 615 4 616 616 M 5 17 TM 501 5 306 2 128 153 M 5 17 TM 502 10 306 4 128 153 M 5 17 TM 503 15 306 6 128 153 M 5 17 TM 702 20 615 4 616 616 R 7.5 26 TM 703 31 733 5 734 734 M 5 17 TM 755 5.25 43 981 5 982 982 M 5 17 TM 3085 71 1024 8 1024 1024 M 5 37 MS 17 TM 602S 10 153 4 128 128 M 5 17 TM 603S 10 153 6 128 128 M 5 17 TM 603SE 21 230 6 128 128 M 5 17 ST-506 RLL TM 244 41 782 4 783 783 R 7.5 37 MS 26 TM 246 62 782 6 783 783 R 7.5 37 MS 26 TM 262R 186364-408 3.5" 20 782 2 783 783 R 7.5 26 TM 264 3.5" 41 782 4 783 783 R 7.5 85 MS 26 TM 344 3.5" 41 782 4 783 783 R 7.5 37 MS 26 TM 346 3.5" 62 782 6 783 783 R 7.5 37 MS 26 TM 362R 3.5" 20 782 2 783 783 R 7.5 85 MS 26 TM 364 186364-102 3.5" 41 782 4 783 783 R 7.5 85 MS 26 TM 3085 104 1024 8 1024 1024 R 7.5 37 MS 26 SCSI TM 2085 74 1004 9 1005 1005 M 5 25 MS TM 2128 115 1004 9 1005 1005 R 7.5 25 MS TM 2170 154 1344 9 1345 1345 R 7.5 25 MS ------------------------------------------------------------------------------ TEAC ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS SD 510 10 306 4 128 128 M 5 17 SD 520 20 615 4 128 128 M 5 17 ------------------------------------------------------------------------------ TEXAS INSTRUMENT ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 5.25 FH 5 153 4 64 64 M 5 17 ------------------------------------------------------------------------------ TOSHIBA 408-727-3939 ------------------------------------------------------------------------------ MODEL ST-506 MFM CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS MK 53FA 5.25 FH 43 830 5 831 831 M 5 30 MS 17 MK 53FB 5.25 FH 64 830 5 831 831 R 5 25 MS 17 MK 54FA 5.25 FH 60 830 7 831 831 M 5 30 MS 17 MK 54FB 5.25 FH 90 830 7 831 831 R 5 25 MS 17 MK 56FA 5.25 FH 86 830 10 831 831 M 5 30 MS 17 MK 56FB 5.25 FH 130 830 10 831 831 R 5 25 MS 17 MK134FA 3.5" 44 733 7 734 734 M 5 25 MS 17 ST-506 RLL MK 53FA 5.25 FH 43 830 5 831 831 M 7.5 30 MS 26 MK 53FB 5.25 FH 64 830 5 831 831 R 7.5 25 MS 26 MK 54FA 5.25 FH 60 830 7 831 831 M 7.5 30 MS 26 MK 54FB 5.25 FH 90 830 7 831 831 R 7.5 25 MS 26 MK 56FA 5.25 FH 86 830 10 831 831 M 7.5 30 MS 26 MK 56FB 5.25 FH 130 830 10 831 831 R 7.5 25 MS 26 ESDI MK153FA 5.25 FH 74 830 5 831 831 R/N 10 23 MS 35 MK154FA 5.25 FH 104 830 7 831 831 R/N 10 23 MS 35 MK156FA 5.25 FH 148 830 10 831 831 R/N 10 23 MS 35 ESDI/SCSI MK250F 5.25 FH 382 1224 10 - - R/N 10 18 MS 35 SCSI MK153FB 5.25 FH 74 830 5 831 831 R 10 23 MS 35 MK154FB 5.25 FH 104 830 7 831 831 R 10 23 MS 35 MK156FB 5.25 FH 148 830 10 831 831 R 10 23 MS 35 MK234FB 3.5" 45 845 3 - - - 10 25 MS MK233FB 3.5" 75 845 5 - - - 10 25 MS MK234FB 3.5" 106 845 7 - - - 10 25 MS ------------------------------------------------------------------------------ TULIN 408-432-9025 ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS 213 10 640 2 656 656 M 5 17 226 22 640 4 656 656 M 5 17 240 33 640 6 656 656 M 5 17 326 22 640 4 641 641 M 5 17 340 33 640 6 641 641 M 5 17 ------------------------------------------------------------------------------ VERTEX 408-946-4600 (SEE PRIAM) ------------------------------------------------------------------------------ MODEL ST-506 CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS V130 26 987 3 988 988 M 5 17 V150 43 987 5 988 988 M 5 17 V170 60 987 7 988 988 M 5 17 ------------------------------------------------------------------------------ WESTERN DIGITAL 800-777-4787 ------------------------------------------------------------------------------ MODEL XT CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS WD93028-X 3.5" 20 782 2 784 784 R 7.75 80 MS 27 WD93038-X 3.5" 30 782 3 784 784 R 7.75 80 MS 27 WD93048-X 3.5" 40 782 4 784 784 R 7.75 80 MS 27 WD95028-X 5.25 HH 20 782 2 784 784 R 7.75 80 MS 27 WD95038-X 5.25 HH 30 782 3 784 784 R 7.75 80 MS 27 WD95048-X 5.25 HH 40 782 4 784 784 R 7.75 80 MS 27 AT WD93028-A 3.5" 20 782 2 - - R 7.75 80 MS 27 WD93048-A 3.5" 40 782 4 - - R 7.75 80 MS 27 WD95028-A 5.25 HH 20 782 2 - - R 7.75 80 MS 27 WD95048-A 5.25 HH 40 782 4 - - R 7.75 80 MS 27 ST-506 MFM WD 262 3.5 to 5.25 HH 20 615 4 616 616 M 5 80 MS 17 BRKT WD 362 3.5" 20 615 4 616 616 M 5 80 MS 17 ST-506 RLL WD 344R 3.5" 40 782 4 783 783 R 7.5 40 MS 26 WD 382R TM262R 3.5" 20 782 2 783 783 R 7.5 85 MS 26 WD 383R 3.5" 30 615 4 616 616 R 7.5 85 MS 26 WD 384R TM364 3.5" 40 782 4 783 783 R 7.5 85 MS 26 WD 544R 3.5 to 5.25 HH 40 782 4 783 783 R 7.5 40 MS 26 BRKT WD 582R 3.5 to 5.25 HH 20 782 2 783 783 R 7.5 85 MS 26 BRKT WD 583R 3.5" 30 615 4 616 616 R 7.5 85 MS 26 BRKT WD 584R 3.5 to 5.25 HH 40 782 4 783 783 R 7.5 85 MS 26 BRKT ------------------------------------------------------------------------------ XEBEC 702-883-4000 ------------------------------------------------------------------------------ MODEL SCSI CAP CYC H RWC WPC ENC RATE ACCESS SPT COMMENTS OWL II 5.25 HH 25 - 4 - - M 5 55 MS OWL II 5.25 HH 38 - 4 - - M 5 40 MS OWL III 5.25 HH 52 - 4 - - M 5 38 MS ------------------------------------------------------------------------------

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