Yes, you were right! Adding another drive to the array made it continue without errors. Is this already reported as a bug?
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. >> >> -- >> === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === >> PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk >> --- I think that everything darkling says is actually a joke. --- >> It's just that we haven't worked out most of them yet. > -- 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
