Path: utzoo!attcan!telly!lethe!torsqnt!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!pacific.mps.ohio-state.edu!tut.cis.ohio-state.edu!att!mcdchg!ddsw1!ddsw1!karl
From: karl@ddsw1.MCS.COM (Karl Denninger)
Newsgroups: comp.sys.ibm.pc
Subject: Re: SCSI hard drive controllers..
Keywords: scsi, hard drive, disk controllers
Message-ID: <[251a3461:5678.2]comp.ibmpc;1@ddsw1.MCS.COM>
Date: 22 Sep 89 14:00:05 GMT
References: <1096@neptune.AMD.COM> <51@pldote.intel.com>
Lines: 40

>Item 5678 (1 resps) by kevin at neptune.AMD.COM on Fri 22 Sep 89 04:35
>[Kevin Tomasek]    Subject: SCSI hard drive controllers..
>(24 lines)
>
>With all this hard drive controller action going on and running out of
>disk space myself, I looked into some RLL controllers and larger disks.
>
>One person who claimed to work for a smaller pc maker said they had
>evaluated all the RLL controllers available.  ( 1-2  yrs ago)  They
>were unable to qualify any of them..  With that info I looked for the
....

That is simply not true anymore.

We have qualified the WD1006V/SR2 boards a while back (about 6-7 months),
and we build PCs.  Out of some 60-70 boards, I have had one bad one.  It
failed within the first two weeks, and was immediately replaced.

None of the others have given anyone trouble.  There are some drives which
fail to work with these things; if you try using it with an MFM drive it may
or may not work.  RLL-qualified drives have all worked to date, and none
have failed (so far).

The 1006 is also a track-cache board, and incredibly fast.  It will also
tolerate a 16 Mhz bus clock, so you can tell your system to run the 16-bit
bus at 0 wait states (if your BIOS supports this option).  The 1006 will
also remap drive types internally so you don't have to fight the drive
tables in your machine.  Note, however, that the remapping will NOT work for
drives with > 1024 cylinders.  SCO Xenix doesn't care; simply turn off the
bios and use the formatter we provide.  386/ix, on the other hand, will
choke.  For MSDOS this is not much of an issue.

All in all, quite a nice board and cheap too.  We sell 'em for $179.  For
the performance you get they're hard to beat; I/O speeds approach
700KB/second depending on your I/O bus capabilities (I've seen anywhere from
550KB/sec to 690KB/sec).

--
Karl Denninger (karl@ddsw1.MCS.COM, <well-connected>!ddsw1!karl)
Public Access Data Line: [+1 312 566-8911], Voice: [+1 312 566-8910]
Macro Computer Solutions, Inc.  "Quality Solutions at a Fair Price"