Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!sjsca4!poffen
From: poffen@sj.ate.slb.com (Russ Poffenberger)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Hard Disk Config & Spinup Problems
Keywords: Hard Disk
Message-ID: <1990Sep5.170844.25044@sj.ate.slb.com>
Date: 5 Sep 90 17:08:44 GMT
References: <141815@sun.Eng.Sun.COM>
Reply-To: poffen@sj.ate.slb.com (Russ Poffenberger)
Organization: Schlumberger Technologies, San Jose, CA.
Lines: 25

In article <141815@sun.Eng.Sun.COM> brada@bardlover.Eng.Sun.COM (Brad Albom) writes:
>Hi all -
>
>I'm having 2 different problems with 2 different hard disks.
>
[problem 1 deleted (can't help there)]
> 
>2) I can't seem to get a Toshiba model MK-156-FA (~141Meg ESDI)
>disk to spin up. It came out of a Sun box, & appears to be
>a normal disk. I've plugged it into a standard power supply
>but it just makes a couple of clicking noises (like heads moving?)
>but it never starts spinning. Is there some trick with this
>drive ?
>

I am not sure about ESDI, but I know that most SCSI disks have an option which
will prevent them from spinning up until a signal is received from the
controller. So if a controller isn't connected, it won't spin up. On CDC
Wren's at least, this can be overridden by a jumper.


Russ Poffenberger               DOMAIN: poffen@sj.ate.slb.com
Schlumberger Technologies       UUCP:   {uunet,decwrl,amdahl}!sjsca4!poffen
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