I lost the original post so I'm jumping in at the wrong thread-point :) Someone mentioned that the primary usage of de-dup is in the backup realm. True perhaps currently, but de-dup IMO is *the* killer app in the world of virtualization and is a huge reason why we're picking NetApp at work to back our NFS VMware DataStores. We easily see 50% savings in space.
I know of only one other production filesystem implementation of data-dedup -- GreenBytes has it in their ZFS-based storage product. I'm not sure why this hasn't caught on, but as soon as a solid and fast implementation of it exists in the Linux world I really think it can catch on for VM datastores.... I know we've hollered at Sun as to why they haven't rolled it out for ZFS yet! Anyways, I know it's on the roadmap, just like throwing my $0.02 once in a while on how big a feature I think this could be...... Great job all :) Ray -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html