Yes it works with raid6 as well.
[root@san01 btrfs-progs]# ./btrfs fi show
Label: 'rockstor_rockstor' uuid: 08d14b6f-18df-4b1b-a91e-4b33e7c90c29
Total devices 1 FS bytes used 19.25GiB
devid 1 size 457.40GiB used 457.40GiB path /dev/sdt3
warning, device 4 is missing
warning, device 2 is missing
warning devid 2 not found already
warning devid 4 not found already
checksum verify failed on 21364736 found 925303CE wanted 09150E74
checksum verify failed on 21364736 found 925303CE wanted 09150E74
bytenr mismatch, want=21364736, have=1065943040
Couldn't read chunk tree
Label: 'backup' uuid: 68be4632-93ba-4478-9098-2ecb23ee6c94
Total devices 5 FS bytes used 978.72MiB
devid 1 size 2.73TiB used 1.62GiB path /dev/sdb
devid 3 size 2.73TiB used 1.62GiB path /dev/sdi
devid 4 size 2.73TiB used 1.62GiB path /dev/sdj
devid 5 size 2.73TiB used 1.62GiB path /dev/sdn
devid 6 size 2.73TiB used 1.62GiB path /dev/sdq
Label: 'tank' uuid: 8a03f8e8-8b84-4d1b-b27d-e23ef8ebe21d
Total devices 10 FS bytes used 5.67TiB
devid 1 size 1.36TiB used 792.67GiB path /dev/sdc
devid 3 size 1.82TiB used 792.65GiB path /dev/sdf
devid 5 size 1.36TiB used 792.65GiB path /dev/sdg
devid 6 size 1.36TiB used 792.65GiB path /dev/sdh
devid 7 size 1.82TiB used 792.65GiB path /dev/sdk
devid 8 size 1.82TiB used 792.65GiB path /dev/sdl
devid 9 size 1.82TiB used 792.65GiB path /dev/sdm
devid 10 size 1.82TiB used 792.65GiB path /dev/sdp
*** Some devices missing
btrfs-progs v4.1
[root@san01 btrfs-progs]# mount /dev/sdb /mnt2/backup
[root@san01 btrfs-progs]# ./btrfs fi df /mnt2/backup
Data, RAID6: total=3.00GiB, used=977.56MiB
System, RAID6: total=96.00MiB, used=16.00KiB
Metadata, RAID6: total=1.03GiB, used=1.14MiB
GlobalReserve, single: total=16.00MiB, used=0.00B
[root@san01 btrfs-progs]# ll /mnt2/backup
total 1000000
-rw-r--r-- 1 root root 1024000000 Jul 2 13:48 test_file_1gb
[root@san01 btrfs-progs]# umount /mnt2/backup
[root@san01 btrfs-progs]# ./btrfs restore -xmv /dev/sdb ~
Restoring /root/test_file_1gb
Done searching
[root@san01 btrfs-progs]# ll ~
total 1000004
-rw-------. 1 root root 1101 Jun 20 23:18 anaconda-ks.cfg
drwxr-xr-x 1 root root 22 Jul 1 09:48 git
-rw-r--r-- 1 root root 1024000000 Jul 2 13:48 test_file_1gb
[root@san01 btrfs-progs]#
On Thu, Jul 2, 2015 at 1:45 PM, Donald Pearson
<donaldwhpearson@xxxxxxxxx> wrote:
> That is correct. I'm going to rebalance my raid5 pool as raid6 and
> re-test just because.
>
> On Thu, Jul 2, 2015 at 1:37 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote:
>> On Thu, Jul 2, 2015 at 12:32 PM, Donald Pearson
>> <donaldwhpearson@xxxxxxxxx> wrote:
>>> I think it is. I have another raid5 pool that I've created to test
>>> the restore function on, and it worked.
>>
>> So you have all devices for this raid6 available, and yet when you use
>> restore, you get missing device message for all devices except the one
>> specified? But that doesn't happen with the raid5 volume?
>>
>>
>> --
>> Chris Murphy
>> --
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