On Fri, Sep 13, 2013 at 09:07:36AM -0400, Ric Wheeler wrote: > 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 :)
I knew there was a specific term for this, but couldn't remember what it was. I've now updated the btrfs website's description(s) of the feature to include "out-of-band" and "in-band". 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 --- Once is happenstance; twice is coincidence; three times --- is enemy action.
signature.asc
Description: Digital signature
