On Mon, 5 Nov 2012 09:11:54 +0100 (CET) Mikael Abrahamsson <swmike@xxxxxxxxx> wrote: > On Mon, 5 Nov 2012, NeilBrown wrote: > > > Try it. If it works for you, we can be more confident that it is stable > > :-) > > root:~# cat /sys/block/md0/md/dev-sdh/state > in_sync > root:~# echo replaceable > /sys/block/md0/md/dev-sdh/state > -bash: echo: write error: Invalid argument > root:~# cat /proc/mdstat > Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10] > md0 : active raid6 sdi[10](S) sdg[11] sdj[15] sdh[14] sdk[13] sde[12] sdd[9] sdb[6] sdf[7] sdc[2] > 13674601024 blocks super 1.2 level 6, 64k chunk, algorithm 2 [9/9] [UUUUUUUUU] > bitmap: 0/15 pages [0KB], 65536KB chunk > > unused devices: <none> > > Does this mean Ubuntu decided to not support this option in their kernel, > or am I misunderstanding something? > You want echo want_replacement > ..../state I changed that from replaceable at some point, so I guess you are looking at old code :-( NeilBrown
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