On Tue Jun 02, 2009 at 03:09:11AM -0700, Alex R wrote: > > I have a serious RAID problem here. Please have a look at this. Any help > would be greatly appreciated! > > As always, most problems occur only during critical tasks like > enlarging/restoring. I tried to replace a drive in my 7disc 6T RAID5 array > as explained here: > http://michael-prokop.at/blog/2006/09/09/raid5-online-resizing-with-linux/ > > After removing a drive and restoring to the new one, another disc in the > array failed. Now I still have all the data redundantly available (the old > drive is still there), but the RAID header is now in a state where it's > impossible to access the data. Is it possible to rearrange the drives to > force the kernel to a valid array? > <-- SNIP details --> AFAIK, the only solution at this stage is to recreate the array. You need to use the "--assume-clean" flag (or replace one of the drives with "missing"), along with _exactly_ the same parameters & drive order as when you originally created the array (you should be able to get most of this from mdadm -D). This will rewrite the RAID metadata, but leave the filesystem untouched. HTH, Robin -- ___ ( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> | / / ) | Little Jim says .... | // !! | "He fallen in de water !!" |
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