Re: btrfs dedup - available or experimental? Or yet to be?

[Martin <m_btrfs@ml1.co.uk>]

On 25/03/15 01:30, Rich Freeman wrote:
> On Mon, Mar 23, 2015 at 7:22 PM, Hugo Mills <hugo@carfax.org.uk> wrote:
>> On Mon, Mar 23, 2015 at 11:10:46PM +0000, Martin wrote:
>>> As titled:
>>>
>>>
>>> Does btrfs have dedup (on raid1 multiple disks) that can be enabled?
>>
>>    The current state of play is on the wiki:
>>
>> https://btrfs.wiki.kernel.org/index.php/Deduplication
>>
> 
> I hadn't realized that bedup was deprecated.
> 
> This seems unfortunate since it seemed to be a lot smarter about
> detecting what has and hasn't already been scanned, and it also
> supported defragmenting files while de-duplicating them.
> 
> I'll give duperemove a shot.   I just packaged it on Gentoo.

Excellent and very rapid packaging, thanks!


Already compiled, installed, and soon to be tried on a test subvolume...


Anyone with any comments on how well duperemove performs for TB-sized
volumes?

Does it work across subvolumes? (Presumably not...)


Thanks,
Martin