On Wed, Oct 14, 2015 at 4:53 PM, Donald Pearson <donaldwhpear...@gmail.com> wrote: > > Personally I would still recommend zfs on illumos in production, > because it's nearly unshakeable and the creative things you can do to > deal with problems are pretty remarkable. The unfortunate reality is > though that over time your system will probably grow and expand and > zfs is very locked in to the original configuration. Adding vdevs is > a poor solution IMO. >
This is the main thing that has kept me away from zfs - you can't modify a vdev, like you can with an md array or btrfs. I don't think zfs makes use of all your space if you have mixed disk sizes in a raid-z either - it works like mdadm. I'm not sure whether btrfs will be any better in that regard (if I have 2x3TB and 3x1TB drives in a RAID5 I should get 6TB of usable space, not 4TB, without messing with partitioning). So, I am running raid1 btrfs in the hope that I'll be able to move to something more efficient in the future. However, I would not personally be using raid5/6 for anything but pure experimentation on btrfs anytime soon. I don't even trust the 4.1 kernel series for btrfs at all just yet, and you're not going to be running older than that for raid5/6. -- Rich -- 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
