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From: russotto@eng.umd.edu (Matthew T. Russotto)
Newsgroups: comp.sys.mac.hardware
Subject: Re: lost Quantum drive
Message-ID: <1990Oct11.200530.13360@eng.umd.edu>
Date: 11 Oct 90 20:05:30 GMT
References: <27857@boulder.Colorado.EDU> <1990Oct11.052227.11784@slhisc.uucp> <4186@lib.tmc.edu>
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Organization: College of Engineering, Maryversity of Uniland, College Park
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In article <4186@lib.tmc.edu> drg@mdaali.cancer.utexas.edu (David Gutierrez) writes:
>In article <1990Oct11.052227.11784@slhisc.uucp> ken@slhisc.uucp (Ken 
>Stamm) writes:
>> I also have been able on rare occasions and unintentionally to place
>> the SCSI controller on Quantum drives into a state where they seem for 
>all
>> the world "busted", until one gets the bright idea to cycle their power.
>
>That happens here, too. I can usually fix it by booting the offending 
>machine from a floppy and then doing a Restart. If that doesn't work, I 
>boot from the floppy again and can usually mount the hard disk with the 
>SCSIProbe cdev. You can get SCSIProbe at sumex and other places.

These are two separate problems.  In the second case, the Mac has somehow
lost track of the drive, and playing with the Mac will get it back.  In the
first case, the drive goes off into never-neverland, for reasons unknown.
Attempts to use SCSIProbe result in 'No data, device busy'.  Playing with
the mac won't fix this-- you have to kill the power to the drive.


--
Matthew T. Russotto	russotto@eng.umd.edu	russotto@wam.umd.edu
      .sig under construction, like the rest of this campus.