Hi Everyone History: I just recently discovered BtrFS. Well really only just started reading a lot about it. Starting with blogs by Jim Salters and Marc Merlin. So, thanks for those blogs guys. This also introduced me to ZoL (ZFS). It seemed a bit more stable but one of the features I really wanted was deduplication and needing 20GB RAM for 1TB of deduped data and the fact it is always on - pushed me away. Some of those guys really don't like BtrFS BTW! What I want to be able to do is backup Virtual images (VirtualBox and some older VMware) over ADSL. I hoped a mixture of Dedupe and the send/receive functions of BtrFS might accomplish this. I am in the process of building a test BtrFS system at home now but I hope to put it into production in the next few months. Current server is a Dual Xeon, Intel server board, 32GB RAM, 2 x 2TB Hardware RAID SAS (consisting of 4 x 2TB SATA drives) as / and /home in ext4 format. I also have 2 unused 4TB SATA drives that will be eventually be BtrFS RAID1 as /Backup. Ubuntu 14.04. Its is mainly a VM host, small file storage for word docs etc, some large archival .pst files and shadowprotect backups of the Terminal Server. I only just built this server over the last weekend to replace their other aging server and I purposely over engineered it. Onsite there is also a backup server that is pretty basic with 2 x 4TB HDDs and 8GB RAM. I plan on converting it to BtrFS as well. Currently is Ubuntu 12.04 but I will be upgrading it soon to 14.04. Offsite in a data centre I have an aging 1 RU server that I will be upgrading. It'll probably have 8GB RAM, 1 X 60GB SSD as boot/swap and 2 X 4TB HDD BtrFS in RAID 1. Currently running 32 bit Debian 7.5. It has had many partial hardware and OS upgrades over the years as it originally started as Slink or even Hamm. Time to start again since I need to move to 64bit. What I want to do is backup the / and /home directories on the main server to /Backup BtrFS directory, run bedup then "send" it to the onsite backup server. The onsite backup server will "send" it to the offsite server. I am assuming (correctly I hope) that the deduplication will also be replicated across the machines. I'll have NOCOW on the VM images, Archived PST files, Shadow protect images and some other stuff. I guess the first question is this even possible? I don't believe that much actual non duplicated data changes all that much mostly just word docs that I already send offsite. I'm really hoping to backup the VMs and the shadow protects offsite as well. I can upgrade the broadband to fibre but before I do that (spend a lot of money) I want to be able to see that it would be possible. Kind Regards - Scott -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
