Hello, recently I was migrating from Debian to openSUSE and wanted to make it smooth by dismantling my 2x1TB raid-1 array, install SUSE on the 1st disk, cp /home data, check everything is OK and then add 2nd disk containing Debian into raid-1 array.
However, in orde to accomplish it I learnt that one cannot simply degrade mount and use such array like with mdadm, but I had to convert system with -dconvert=single -mconvert=single which takes some time. That's why I'm considering to put all my partitions (swap, root with several subvolumes, home) under LVM2 volumes and then create raid-1 array with mdadm since that would enable to me more easy and quickly temporarily dismantle raid-1 array, do some data manipulation from one disk to another (sometimes I use 2nd disk as temporatily storage when restoring some archived data from tapes etc.) and then resilver raid-1 array. However, I wonder if there are some 'cons' in having raid-1 partition under mdadm and not using native mirroring capabilities of btrfs fs? Let me add that I also want to take advantage of using SUSE's snapshots features, but I hope that's not the obstacle for the above-mentioned layout - I'd still use btrfs' snapshot facility. Sincerely, Gour -- Whenever and wherever there is a decline in religious practice, O descendant of Bharata, and a predominant rise of irreligion — at that time I descend Myself. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
