[6149] in linux-scsi channel archive
Re: AHA-2940,
daemon@ATHENA.MIT.EDU (Simon Burley)
Mon Mar 22 11:02:37 1999
Date: Mon, 22 Mar 1999 16:33:44 +0100
From: Simon Burley <sjb@dneg.com>
To: Kenneth Johansson <ken@kieraypc01.p.y.ki.era.ericsson.se>
CC: Simon Burley <sjb@dneg.com>, Marc SCHAEFER <schaefer@alphanet.ch>,
Kenneth Johansson <erakeon@kieraypc01.p.y.ki.era.ericsson.se>,
linux-scsi@vger.rutgers.edu
Kenneth Johansson wrote:
>
> Simon Burley wrote:
>
> > Marc SCHAEFER wrote:
> > >
> > > On Mon, 15 Mar 1999, Kenneth Johansson wrote:
> > >
> > > > hmm so the error is that noone is turning it on again or is it that it fails when it tries
> > > > that.
> > >
> > > Yes, that's really a bug in the sd driver: when it sees NOT READY it
> > > should re-spin it up.
> > >
> > > However, the *original* bug is why on earth has the disk spun down ?
> > >
> >
> > >
> > > Except the power that your tape drives takes away ...
> > >
> >
> > I've seen a loose power connector on the back of the disk do exactly
> > this. It might run for, say, 12 hours and then spin down. Putting a new
> > connector on the cable from the psu fixed this in no time at all.
> > S.
> > --
>
> This is not my problem.
>
> I have noticed it happens when the tape backup software dose eject on the tape. The tape is not
> ejected and the harddrive get this error. It only happens whit an eject. everything works fine up
> to this point.
>
> I can do as many backups I want as long as I can fit it on one tape thus avoiding an
> eject.(unload).
This really sounds like a power supply problem. Check the 5 and 12 volt
output on the psu - they should be _at least_ the rated output voltage
on the connector to the drive, and no less. Also make sure there are no
swollen electrolytic caps on the psu board.
Simon
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