Re: Raid 5 - not clean and then a failure.

[Jon Hardcastle <jd_hardcastle@yahoo.com>]

--- On Tue, 25/8/09, Robin Hill <robin@robinhill.me.uk> wrote:

> From: Robin Hill <robin@robinhill.me.uk>
> Subject: Re: Raid 5 - not clean and then a failure.
> To: linux-raid@vger.kernel.org
> Date: Tuesday, 25 August, 2009, 9:16 AM
> On Tue Aug 25, 2009 at 12:54:49AM
> -0700, Jon Hardcastle wrote:
> 
> > Guys,
> > 
> > I have been having some problems with my arrays that I
> think i have
> > nailed down to a pci controller (well I say that - it
> is always the
> > drives connected to *a* controller but I have tried
> 2!) anyway the
> > latest saga is i was trying some new kernel options
> last night - which
> > didn't work.
> > 
> Did they have the same chipset?  I had problems with
> PCI controllers on
> one of my systems, which turned out to be some sort of
> conflict between
> the onboard chipset and the chipset on the
> controllers.  I found a PCI
> card with a different chipset and have had no issues
> since.

They are/were cheapy little via ones from 'aria' I got a new one and installed it along side a week ago 1 drive on it to 'test', when my array came to do a scrub a week later I got a whole host of issues. I am not sure what the cause was but now either of the controllers seem work reliably. I have a pci express controller but my kernel doesnt (yet!) support pci express. Do you know of you can get sata 3 on pci? or is it too slow?

> > But when i booted up again this morning it said one of
> the drives was
> > in an inconsistent state (not sure of the *exact*
> error message). I
> > then kicked off an add of the drive and it started
> syncing. It got
> > about 5% in and then the second drive in on that
> controller complained
> > and the array failed.
> > 
> > Is there any hope for my data? If i get a good
> controller in there
> > will the resync continue? can I try and tell it to
> assume the drives
> > are good (which they ought to be)?
> > 
> There's definitely hope.  You can assemble the array
> (using the good
> drives and the last drive to fail) using the --force
> option, then re-add
> (and sync) the other drive (I'd recommend doing a fsck on
> the filesystem
> as well).  I've just had to do a similar thing myself
> after two drives
> failed (overheated after a fan failure).
> 
> Cheers,
>     Robin
> -- 

Thank you, Thank you, Thank you. I probably wont look at this for a few days now - i find when sitting down without enough time to really see it through is when I get problems! and I am abit busy bee atm!


-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its own.'
-----------------------





      
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