Path: utzoo!dptcdc!jarvis.csri.toronto.edu!mailrus!uflorida!ukma!tut.cis.ohio-state.edu!rutgers!att!ihlpm!cwga
From: cwga@ihlpm.ATT.COM (Gantt)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Anyone know about Mitsubishi Hard drive 4070X?
Summary: User comments about Mitsubishi 4070X
Message-ID: <3335@ihlpm.ATT.COM>
Date: 18 Apr 89 17:02:02 GMT
References: <30989@stellar.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 21


I bought one of these mail order from a place in Michigan advertising in
Computer Shopper.  They "misplaced" the order and after several phone calls
and a letter it eventually arrived.  I Installed it in an AT&T 6300 replacing
a Microscience 20M and used the same XEBEC controller after burning a new
ROM for it.  It made a _VERY_ noticable improvement in performance as my
old disk was almost full. (It had even been "optimized".)

The drive has been in use for a few weeks with no apparent problems.  It is
very quiet with only a little hissing noise while its on.  Seeks are just
little clicks.  It has a voice coil positioner and auto parking heads.  The
70 Meg claim is unformatted, for an RLL controller.  It's about 40 formatted
with a MFM controller, which I'm using.

The only disturbing thing about the drive is that the one that I got had a
lot (>20) of bad tracks already marked.  I don't know what is typical for
a RLL rated drive.  I didn't see any more bad tracks during the low level
format.   BTW, the drive is 5 heads and 970 or so tracks.

C. W. Gantt
Standard disclaimer, etc.