Re: Major HDD performance degradation on btrfs receive

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On Tue, Feb 23, 2016 at 09:26:35AM -0800, Marc MERLIN wrote:
> Label: 'dshelf2'  uuid: d4a51178-c1e6-4219-95ab-5c5864695bfd
>         Total devices 1 FS bytes used 4.25TiB
>         devid    1 size 7.28TiB used 4.44TiB path /dev/mapper/dshelf2
> 
> btrfs fi df /mnt/btrfs_pool2/
> Data, single: total=4.29TiB, used=4.18TiB
> System, DUP: total=64.00MiB, used=512.00KiB
> Metadata, DUP: total=77.50GiB, used=73.31GiB
> GlobalReserve, single: total=512.00MiB, used=31.22MiB
> 
> Currently, it's btrfs on top of dmcrpyt on top of swraid5

Sorry, I forgot to give the mount options:
/dev/mapper/dshelf2 on /mnt/dshelf2/backup type btrfs (rw,noatime,compress=lzo,space_cache,skip_balance,subvolid=257,subvol=/backup)

Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901
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