Re: ST15150N SCSI HD trouble

["Aaron" <afb qwest net>]

The ST15150N is a quite old, full height 4G drive.  I used to run these in
servers years ago.  They are noisy and run particularly hot.  It is quite
possible you have a bad drive.  I'd test it in an Intel machine to make sure
the drive itself is good.

Aaron Brueck
A+ Computer Specialists, Inc.


----- Original Message -----
From: "Jim Farrow" <farrow@iwaynet.net>
To: <axp-list@redhat.com>
Sent: Tuesday, March 20, 2001 4:54 PM
Subject: Re: ST15150N SCSI HD trouble


> I regularly boot from this model drive on a sx board with a Symbios 53c875
adapter,
> albeit in SRM v5.6-3.  It is jumperless, using scsi id 0 with a zip drive,
id 3,and
> cd-rom, id 1, on the same cable.  It shows up as Fast-10 SCSI in dmesg.
Perhaps it's
> another case on my administration by smoke and mirrors, but in this
instance I can
> report no problems.  Currently it uses kernel 2.4.2, but has run in the
past on
> 2.2.?13?, I think.  I know nothing on synch xfers and little about SCSI in
general.
> If I can be of further assistance,  let me know what would help.
>
> Cheers,
> ..Jim Farrow..
>
> ps Is there a command/procedure to shutdown noisy SCSI drives when not in
use?
>
> Paul Bunn wrote:
>
> > The only other thing I can think of is an incompatibility in the drive's
firmware
> > and Linux.  You might want to see if there is a firmware update from
Seagate's
> > website for the drive.  Seagate used to not allow customers to update
firmware in
> > their harddrives, not sure if they've changed their policy on this.
> >
> > Did anyone else suggest disabling synch xfers, or dropping the synch
rate down a
> > notch ?  The only possible problem with this is whether the linux SCSI
host driver
> > honors the settings set in its BIOS.  One possibility is to see if there
is a
> > jumper on the drive itself to disable synch xfers.
> >
> > Regards,
> >
> > Paul Bunn, UltraBac.com, 425-644-6000
> > Microsoft MVP - WindowsNT/2000
> > http://www.ultrabac.com
> >
> >
> > -----Original Message-----
> > From: José Pedro Sousa do Amaral [mailto:amaral@alma.edu]
> > Sent: Tuesday, March 20, 2001 10:04 AM
> > To: axp-list@redhat.com
> > Subject: Re: ST15150N SCSI HD trouble
> >
> > Hi,
> > Thank you for the suggestions.
> >
> > I did change the termination power to the bus but that didn't solve the
> > problem.
> >
> > I do have another device on that SCSI chain; it is a CD-ROM with SCSI id
4.
> > As suggested, I disconnected it but it didn't solve the problem either.
> >
> > At boot time both SCSI devices are identified in the SCSI bus 0: Seagate
> > ST15150N with id 0 and the CD-ROM player with id 4.
> >
> > When I attempt to boot Linux from the floppy sequence (linload &
MILO -->
> > kernel --> RAMdisk), there is sporadic dive activity--activity light and
> > click-clack sounds--when the boot process begins, but once the boot
hangs
> > (after expanding the kernel and probing the SCSI bus) the drive activity
> > light is on and there are no sounds coming from the drive other them the
> > humming from spinning.
> >
> > Any other suggestions?
> >
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>
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