Path: utzoo!attcan!uunet!decwrl!shelby!morrow.stanford.edu!news
From: rex@pangea.Stanford.EDU (Rex Sanders)
Newsgroups: comp.sys.mac.hardware
Subject: Internal HD scrambled by SCSI device
Message-ID: <1990Sep19.175620.15824@morrow.stanford.edu>
Date: 19 Sep 90 17:56:20 GMT
Sender: news@morrow.stanford.edu (USENET News System)
Organization: Data Center, Stanford University, California, USA
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Setup:	Mac II with 80 Mb Rodime internal HD
	new DPI 44R (Syquest) cartridge disk on external SCSI
		internally terminated.

Problem:  Turn OFF power to the DPI, but leave everything attached.
          Power up Mac II.
	  BOOM - 80 Mb internal HD scrambled.
	  Spend 2-3 days recovering files using SUM II.
	  Could not recover from backups - that's what we attached the DPI for!
	  Repeated problem (accidentally) twice.

Called DPI - they were very apologetic, but said this was a "feature" of SCSI.
Said that some manufacturers had (expensively) engineered around this problem.
NO MENTION of this problem in (very slim) DPI manual.

I'm certain I've powered up a number of Mac IIs with non-DPI SCSI devices
turned off, including scanners, slide makers, CD-ROMs, and external hard disks.
I've never seen this problem before.

Is DPI, um, correct?  How could BMUG recommend a drive with this "feature"?

-- Rex Sanders, USGS
   rex@pmgvax.wr.usgs.gov