On 05/10/2013 11:46 PM, Hugo Mills wrote: > On Fri, May 10, 2013 at 11:43:34PM +0200, Marcus Lövgren wrote: >> Yes, you were right! Adding another drive to the array made it continue >> without errors. Is this already reported as a bug? > > I believe it has been, yes. I think we've even had a patch out for > it. I haven't looked to see if it's got into 3.10. > Yes, there is a patch but as far as I've seen it didn't hit 3.10 (yet). I'll repost it immediately.
Thanks for reminding me on that, Andreas > Hugo. > >> Thanks for the help, >> Marcus >> >> >> 2013/5/10 Remco Hosman - Yerf IT <re...@yerf-it.nl> >> >>> On May 10, 2013, at 10:21 PM, Hugo Mills <h...@carfax.org.uk> wrote: >>> >>>> On Fri, May 10, 2013 at 10:07:56PM +0200, Marcus Lövgren wrote: >>>>> Hi list, >>>>> >>>>> I am using kernel 3.9.0, btrfs-progs 0.20-rc1-253-g7854c8b. >>>>> >>>>> I have a three disk array of level single: >>>>> >>>>> # btrfs fi sh >>>>> Label: none uuid: 2e905f8f-e525-4114-afa6-cce48f77b629 >>>>> Total devices 3 FS bytes used 3.80TB >>>>> devid 1 size 2.73TB used 2.25TB path /dev/sdd >>>>> devid 2 size 2.73TB used 1.55TB path /dev/sdc >>>>> devid 3 size 2.73TB used 0.00 path /dev/sdb >>>>> >>>>> Btrfs v0.20-rc1-253-g7854c8b >>>>> >>>>> # btrfs fi df /mnt/data >>>>> Data: total=3.79TB, used=3.79TB >>>>> System: total=4.00MB, used=420.00KB >>>>> Metadata: total=6.01GB, used=4.87GB >>>>> >>>>> >>>>> When running >>>>> # btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/data >>>>> >>>>> I get >>>>> >>>>> ERROR: error during balancing '/mnt/data' - Invalid argument >>>>> There may be more info in syslog - try dmesg | tail >>>>> >>>>> dmesg | tail says: >>>>> >>>>> btrfs: unable to start balance with target data profile 128 >>>>> >>>>> Isn't it possible to convert raid level to raid5? >>>> >>>> Yes, it should be possible. It looks like the kernel's got a >>>> problem with it, which is odd because 3.9 should know about RAID-5. >>>> >>> >>> Wasn't there some issues that the kernel or tools wanted 4 disks when >>> converting to raid5? >>> >>> Remco >>> >>>> Hugo. >>>> > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
