john@wpi.wpi.edu (John F Stoffel) (03/14/90)
Hi Net! I just picked up a hard drive and I need some info since I have no documentation on it at all. Here is what I do know... Maker: MAXTOR Model: XT-1085 Capacity: 85 Meg Number Heads: 6 (I think) Number Tracks: 956+ (Highest track number on bad block list) To: TLA: 1091205 A HDA: 1050490 PCBA: 1059055 H18 What I need to know is: Max Track Number: Number of Heads: Number of Blocks: Size of Blocks: Avg Access time: Anything else I missed. The first two numbers are the really needed ones, the rest I can figure out or aren't really important. I haven't tried calling MAXTOR themselves, since this drive is probably about 5 years old, but a free drive is nothing ot snear at... Thanks for your help! Please email to me, don't reply to the lists! John Stoffel john@wpi.wpi.edu john@wpi.bitnet
lphillips@lpami.wimsey.bc.ca (Larry Phillips) (03/18/90)
In <9641@wpi.wpi.edu>, john@wpi.wpi.edu (John F Stoffel) writes: >Hi Net! > >I just picked up a hard drive and I need some info since I have no >documentation on it at all. Here is what I do know... > >Maker: MAXTOR >Model: XT-1085 >Capacity: 85 Meg >Number Heads: 6 (I think) >Number Tracks: 956+ (Highest track number on bad block list) >To: >TLA: 1091205 A >HDA: 1050490 >PCBA: 1059055 H18 Model XT-1085 Interface ST-506 Rec. method MFM Phys size 5.25 FH Capacity 71 meg (the 85 meg figure is unformatted capacity) Cylinders 1024 Heads 8 Red. Wr Curr. 1025 Wr. PreComp 1025 Xfer Rate 5 Mbits/sec Avg Seek 28 Ms Sec/track 17 -- Entomology bugs me. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+
thomas@uplog.se (Thomas Tornblom) (03/21/90)
In article <1274@lpami.wimsey.bc.ca> lphillips@lpami.wimsey.bc.ca (Larry Phillips) writes:
Model XT-1085
Interface ST-506
Rec. method MFM
Phys size 5.25 FH
Capacity 71 meg (the 85 meg figure is unformatted capacity)
Note that these drives work OK with a 2.7 RLL controller. We tested
a few with Adaptec ACB-4070 controllers. Will give you 50% more capacity
or about 105 Mb.
--
Real life: Thomas Tornblom Email: thomas@uplog.se
Snail mail: TeleLOGIC Uppsala AB Phone: +46 18 189406
Box 1218 Fax: +46 18 132039
S - 751 42 Uppsala, Swedenbdb@becker.UUCP (Bruce Becker) (03/22/90)
In article <1274@lpami.wimsey.bc.ca> lphillips@lpami.wimsey.bc.ca (Larry Phillips) writes: |In <9641@wpi.wpi.edu>, john@wpi.wpi.edu (John F Stoffel) writes: |>Hi Net! |> |>I just picked up a hard drive and I need some info since I have no |>documentation on it at all. Here is what I do know... |>[...] | | |Model XT-1085 |Interface ST-506 |Rec. method MFM |Phys size 5.25 FH |Capacity 71 meg (the 85 meg figure is unformatted capacity) |Cylinders 1024 |Heads 8 |Red. Wr Curr. 1025 |Wr. PreComp 1025 |Xfer Rate 5 Mbits/sec |Avg Seek 28 Ms |Sec/track 17 Since the XT-1xxx Maxtor series use plated media, they work reliably as RLL-encoded drives. I've been using a couple of XT-1085's set up as RLL for quite some time with no trouble (except for the general noise which Maxtors produce 8^). Rec. method RLL Xfer Rate 7.5 Mbits/sec Capacity 105 meg Sec/track 25 This information should work fine also for XT-2xxx series and Newbury drives with similar model numbers, as far as I know... -- ,u, Bruce Becker Toronto, Ontario a /i/ Internet: bdb@becker.UUCP, bruce@gpu.utcs.toronto.edu `\o\-e UUCP: ...!uunet!mnetor!becker!bdb _< /_ "Paranoia is its own reward" - W. Disney
dd26+@andrew.cmu.edu (Douglas F. DeJulio) (03/22/90)
bdb@becker.UUCP (Bruce Becker) writes: > Since the XT-1xxx Maxtor series use > plated media, they work reliably as > RLL-encoded drives. I've been using > a couple of XT-1085's set up as RLL > for quite some time with no trouble > (except for the general noise which > Maxtors produce 8^). > > Rec. method RLL > Xfer Rate 7.5 Mbits/sec > Capacity 105 meg > Sec/track 25 Yow! I've got an XT-1085 hooked up in my Sun2 cluster, and I'm rather low on disk space. Does anyone know of an Adaptec-like SCSI<->ST506 card that will let me use RLL? Alternatively, does anyone know how to coerce the ordinary Adaptec cards shiped w/ Sun2s to use RRL? -- Doug.deJ | dd26@andrew.cmu.edu | Carnegie-Mellon University ******** | ...!harvard!andrew.cmu.edu!dd26 | Do not attend this college.
bbaker@cbmvax.commodore.com (Bob Baker) (03/23/90)
In article <ca2BpN600UgyQ0Zh8a@andrew.cmu.edu> dd26+@andrew.cmu.edu (Douglas F. DeJulio) writes: > bdb@becker.UUCP (Bruce Becker) writes: > > Since the XT-1xxx Maxtor series use > > plated media, they work reliably as > > RLL-encoded drives. I've been using > > a couple of XT-1085's set up as RLL > > for quite some time with no trouble > > (except for the general noise which > > Maxtors produce 8^). > > > > Rec. method RLL > > Xfer Rate 7.5 Mbits/sec > > Capacity 105 meg > > Sec/track 25 > > Yow! I've got an XT-1085 hooked up in my Sun2 cluster, and I'm rather > low on disk space. Does anyone know of an Adaptec-like SCSI<->ST506 > card that will let me use RLL? Alternatively, does anyone know how to > coerce the ordinary Adaptec cards shiped w/ Sun2s to use RRL? > -- Yes, Adapted makes the 4070 card which is the RLL version of the 4000, SCSI to ST506. One source is Computer Surplus, as advertised in Computer Shopper.
lphillips@lpami.wimsey.bc.ca (Larry Phillips) (03/23/90)
In <ca2BpN600UgyQ0Zh8a@andrew.cmu.edu>, dd26+@andrew.cmu.edu (Douglas F. DeJulio) writes: >bdb@becker.UUCP (Bruce Becker) writes: >> Since the XT-1xxx Maxtor series use >> plated media, they work reliably as >> RLL-encoded drives. I've been using >> a couple of XT-1085's set up as RLL >> for quite some time with no trouble >> (except for the general noise which >> Maxtors produce 8^). >> >> Rec. method RLL >> Xfer Rate 7.5 Mbits/sec >> Capacity 105 meg >> Sec/track 25 > >Yow! I've got an XT-1085 hooked up in my Sun2 cluster, and I'm rather >low on disk space. Does anyone know of an Adaptec-like SCSI<->ST506 >card that will let me use RLL? Alternatively, does anyone know how to >coerce the ordinary Adaptec cards shiped w/ Sun2s to use RRL? The Adaptec 4070 is a SCSI->ST506 RLL controller. The Adaptec 4000 controller shipped with the Sun 2 cannot be made to run RLL. 4070s are available fairly cheaply. -larry -- Entomology bugs me. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+
lphillips@lpami.wimsey.bc.ca (Larry Phillips) (03/23/90)
In <THOMAS.90Mar21100049@uplog.uplog.se>, thomas@uplog.se (Thomas Tornblom) writes: >In article <1274@lpami.wimsey.bc.ca> lphillips@lpami.wimsey.bc.ca (Larry Phillips) writes: > > Model XT-1085 > Interface ST-506 > Rec. method MFM > Phys size 5.25 FH > Capacity 71 meg (the 85 meg figure is unformatted capacity) > > >Note that these drives work OK with a 2.7 RLL controller. We tested >a few with Adaptec ACB-4070 controllers. Will give you 50% more capacity >or about 105 Mb. Note also that if one of these drives does not work well with a 4070 (or any other RLL controller), that you will have a hard time convincing the manufacturer to do anything about it under warranty (unless the XT-1085 is recognized by Maxtor as RLL capable). As with other things of this nature, it will probably work, but you are on your own for supprt. -larry -- Entomology bugs me. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+