Carlos Carvalho wrote: > Molle Bestefich ([EMAIL PROTECTED]) wrote on 22 April 2006 05:54: > >Tim Bostrom wrote: > >> raid5: Disk failure on hdf1, disabling device. > > > >MD doesn't like to find errors when it's rebuilding. > >It will kick that disk off the array, which will cause MD to return > >crap (instead of stopping the array and removing the device - I > >wonder), again causing 'mount' etc. to fail. > > > >Quite unfortunate for you, since you have absolutely no redundancy > >with 4/5 drives, and you really can't afford to have the 4th disk > >kicked just because there's a bad block on it. > > Yes... > > As Molle says, you have a chance that it's a driver/cable problem. > What you can also do is dd the disk to another one and try to rebuild > the array with the new disk so that you won't get errors during the > reconstruction. If you get errors during the copy you'll have to > decide what to do with the bad blocks. Some people prefer to use > ddrescue instead of dd; I've never tried it. I've used ddrescue and would *highly* recommend it. Use the GNU version, not the other one (dd_rescue?)
It handles errors very well indeed and has a good display to show what's happening. It seems faster than dd (possibly threaded so streams both drives rather than read a drive, write a drive) David - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
