Re: What does this scsi error mean ?

[Olivier Galibert <galibert@pobox.com>]

On Thu, Jan 18, 2007 at 03:08:46PM +0100, Olivier Galibert wrote:
> On Mon, Jan 15, 2007 at 11:14:52PM +0000, Alan wrote:
> > > Both smart and the internal blade diagnostics say "everything is a-ok
> > > with the drive, there hasn't been any error ever except a bunch of
> > > corrected ECC ones, and no more than with a similar drive in another
> > > working blade".  Hence my initial post.  "Hardware error" is kinda
> > > imprecise, so I was wondering whether it was unexpected controller
> > > answer, detected transmission error, block write error, sector not
> > > found...  Is there a way to have more information?
> > 
> > Well the right place to look would indeed have been the SMART data
> > providing the drive didn't get into a state it couldn't update it.
> > Hardware error comes from the drive deciding something is wrong (or a
> > raid card faking it I guess). That covers everything from power
> > fluctuations and overheating through firmware consistency failures and
> > more.
> > 
> > If you pull the drive and test it in another box does it show the same ?
> 
> Ok, inverted the disks, got a crash of the same blade with the new
> disk, so the problem is not the drive itself.  Gonna try inverting two
> blades to check if it's the power supply connector/rail.

...and it is the power supply/connector.  Failure is linked to the
position of the blade in the box (as in the blade in the first
position always fails).  Now that's a cute failure.  Having the
support act on it is going to be fun.

  OG.

PS: Yes, I did forget to send that email :-)