Messages in this thread | | | Date | Fri, 13 Sep 2013 09:07:36 -0400 | From | Ric Wheeler <> | Subject | Re: [GIT PULL] Btrfs |
| |
On 09/12/2013 11:36 AM, Chris Mason wrote: > Mark Fasheh's offline dedup work is also here. In this case offline > means the FS is mounted and active, but the dedup work is not done > inline during file IO. This is a building block where utilities are > able to ask the FS to dedup a series of extents. The kernel takes > care of verifying the data involved really is the same. Today this > involves reading both extents, but we'll continue to evolve the patches.
Nice feature!
Just a note, the "offline" label is really confusing. In other storage products, they typically call this "out of band" since you are online but not during the actual write in a synchronous way :)
Ric
| |