On Friday July 7, jpiszcz@xxxxxxxxxxxxxxx wrote: > >> > >> Jul 7 08:44:59 p34 kernel: [4295845.933000] raid5: reshape: not enough > >> stripes. Needed 512 > >> Jul 7 08:44:59 p34 kernel: [4295845.962000] md: couldn't update array > >> info. -28 > >> > >> So the RAID5 reshape only works if you use a 128kb or smaller chunk size? > >> > > Neil, > > Any comments? > Yes. This is something I need to fix in the next mdadm. You need to tell md/raid5 to increase the size of the stripe cache before the grow can proceed. You can do this with echo 600 > /sys/block/md3/md/stripe_cache_size Then the --grow should work. The next mdadm will do this for you. NeilBrown - 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
