On Sun, 12 Jul 2009 12:53:59 +0300 Cyril Plisko <cyril.pli...@mountall.com> wrote:
> On Sun, Jul 12, 2009 at 7:06 AM, James C. > McPherson<james.c.mcpher...@gmail.com> wrote: > > Anil wrote: > >> > >> When it comes out, how will it work? > >> > >> Does it work at the pool level or a zfs file system level? If I > >> create a zpool called 'zones' and then I create several zones > >> underneath that, could I expect to see a lot of disk space savings if > >> I enable dedup on the pool? > >> > >> Just curious as to what's coming and what I should look out for. > >> > >> If it works at the pool level, that'll be very useful and save quite > >> a disk space on a system with a lot of zones - which share a lot of > >> common files. > > > > Good question - we don't know just yet. I expect we'll > > have a much better idea after Jeff and Bill deliver their > > keynote speech at Kernel Conference Australia, which kicks > > off on Wednesday. > > There is an ongoing speculations of what/when/how deduplication will > be in ZFS and I am curious: what is the reason to keep the thing > secret ? I always thought open source assumes open development > process. What exactly people behind deduplication effort trying to > prove by keeping their mouth shut ? > > Something feels wrong... Hi Cyril, I don't work with Jeff and Bill, and I cannot speak for them about this. What I can say, however, is that "open source" does not always equate to requiring "open development". I do not think that Jeff, Bill and team are trying to "prove" anything by "keeping their mouth[s] shut". I think you should remember that they have a heckuvalot on their plates right now, and deduplication is not an _easy_ problem to solve. It must be done Correctly, and I do not believe there is any wiggle room on that. Besides that, if you're so worried about it, why haven't you asked them directly? James C. McPherson -- Senior Kernel Software Engineer, Solaris Sun Microsystems http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog Kernel Conference Australia - http://au.sun.com/sunnews/events/2009/kernel _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
