--- On Wed, 26/8/09, Goswin von Brederlow <goswin-v-b@xxxxxx> wrote: > From: Goswin von Brederlow <goswin-v-b@xxxxxx> > Subject: Re: Raid 5 - not clean and then a failure. > To: Jon@xxxxxxxxxxxxxxx > Cc: linux-raid@xxxxxxxxxxxxxxx > Date: Wednesday, 26 August, 2009, 12:18 PM > Jon Hardcastle <jd_hardcastle@xxxxxxxxx> > writes: > > > 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. > > > > 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)? > > > > Please help! > > The inconsistency is probably just a block here or there > and I'm > assuming none of your drives actualy failed. So 99.9999% of > your data > should be there. Just rebooting might actualy just get your > raid back > (to syncing). If not then you have to force reassembly from > the drives > with the newest serials. That will give you some data > corruption, > whatever was writing when the controler gave errors. Worst > case you > have to recreate the raid with --assume-clean. > > I recommend adding a bitmap to the raid. That way a > wrongfully failed > drive can be resynced in a matter of minutes instead of > hours or > days. Makes it way less likely another error occurs during > resync. > > MfG > Goswin > -- > To unsubscribe from this list: send the line "unsubscribe > linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > I did look into bitmaps *abit* i could easily have the imagine for my 6 drive raid 5 stored on the raid1 I have in the same system.. The googling I did tho did not paint a pretty picture it talked about huge performance hits? ----------------------- N: Jon Hardcastle E: Jon@xxxxxxxxxxxxxxx 'Do not worry about tomorrow, for tomorrow will bring worries of its own.' ----------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
