--- On Tue, 25/8/09, Robin Hill <robin@xxxxxxxxxxxxxxx> wrote:
> From: Robin Hill <robin@xxxxxxxxxxxxxxx>
> Subject: Re: Raid 5 - not clean and then a failure.
> To: linux-raid@xxxxxxxxxxxxxxx
> 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.
>
> > 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
It worked! I had to force the array, to assemble.. but it did. Had some more problems with the controller that I think was caused ultimately by the two via controller conflicting. I think removing them *both* and booting up helped the computer to work out what was going on (don't know how) I also took down the 'minimum guaranteed' speed of the rebuild to 50MB as the 2 drives on the PCI/150 card were struggling I think - not sure about this as the drive does a 'check' once a week and has only ever failed last weekend. So basically i am not really 100% sure what caused this problem - but i do know i need to get a more stable way of controller these additional drives!
On a side note, if a 'repair' does everything a 'check' does but also repairs it. Is there any merit in just doing repairs?
Finally, anyone here got a port multiplier working?
-----------------------
N: Jon Hardcastle
E: Jon@xxxxxxxxxxxxxxx
'Do not worry about tomorrow, for tomorrow will bring worries of its own.'
-----------------------
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