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Re: [dm-devel] Hard drives shutting themselves off in RAID mode

On Fri, Jun 16, 2006 at 12:48:24AM +0200, Rune Saetre wrote:
> Hi
> Next silly question then:
> It can't be the power supply not coping with a large number of disks 
> seeking simultaneously? If the voltage drops too much some disks might 
> shut down.
> Probably unlikely, but it would yield a simple solution..

Unlikely but possible IMO. If you can test it with reasonable
effort and cost (e.g. put some of them on another PSU),
you might want to do that.


> Rune
> ---
> Rune S?tre <rune saetre netcom-gsm no>
> NetCom as
> ..
> On Thu, 15 Jun 2006, Tom Wirschell wrote:
> >On 15 Jun 2006, Greg Freemyer wrote:
> >>
> >>In 2.6.17-mm there is a huge SATA error handler (EH) rewrite.  Is is
> >>planned to hit the stable Linus kernel with 2.6.18 towards the end of
> >>the summer, but even then it will only have a few of the actual
> >>drivers modified to use the EH infrastructure.
> >
> >Damn. I read about this in the LWN.net Kernel pages for may 17th. I
> >figured that once it was in, everything would automagically be using it
> >too (i.e. the drivers wouldn't need to be updated to the new system).
> >Guess I was a tad na?ve about that.
> >I tried 2.6.17-rc5-mm2 and ran into some BUG()s which went away when I
> >just stuck to 2.6.17-rc5.
> >
> >>I would repost your problem to the lkml-ide list and see if they think
> >>that the new EH should help you, and when/if your controller will be
> >>using the new EH infrastructure.
> >
> >Looks like a good idea, thanks!
> >Don't let that keep anybody on this list who might have an explanation
> >for this be deterred from responding though. :)
> >
> >>Also, there is a ton of testing going on with the new EH, so if your
> >>willing to be a guinea pig, I'm sure you will get a lot of support
> >>from the dev. team and get your specific driver updated ASAP.
> >
> >I've been sitting on a non-functional array for almost 3 months now.
> >Don't mind having weird issues a little longer if it means things will
> >end up working nicely in the end (or I at least get a sensible
> >explanation for what's wrong, so I know what I must do to fix it).
> >
> >Kind regards,
> >
> >Tom Wirschell
> >
> >--
> >dm-devel mailing list
> >dm-devel redhat com
> >https://www.redhat.com/mailman/listinfo/dm-devel
> >

> --
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> https://www.redhat.com/mailman/listinfo/dm-devel

Arno Wagner, Dipl. Inform., CISSP --- CSG, ETH Zurich, wagner tik ee ethz ch 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans
Windows is the "under-3" toy of the OS world. -- Matthew D. Fuller

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