I tried ZFS on various linux/FreeBSD builds in the past and the
performance was aweful. It simply required too much RAM to perform
properly. This is why I went the BTRFS route.
Maybe I should look at ZFS again on Ubuntu 16.04...
On 5/16/2016 6:59 AM, Fajar A. Nugraha wrote:
On Mon, May 16, 2016 at 5:38 PM, Ron Kelley <rkelley...@gmail.com> wrote:
For what's worth, I use BTRFS, and it works great.
Btrfs also works in nested lxd, so if that's your primary use I highly
recommend btrfs.
Of course, you could also keep using zfs-backed containers, but
manually assign a zvol-formatted-as-btrfs for first-level-container's
/var/lib/lxd.
Container copies are almost instant. I can use compression with minimal
overhead,
zfs and btrfs are almost identical in that aspect (snapshot/clone, and
lz4 vs lzop in compression time and ratio). However, lz4 (used in zfs)
is MUCH faster at decompression compared to lzop (used in btrfs),
while lzop uses less memory.
use quotas to limit container disk space,
zfs does that too
and can schedule a deduplication task via cron to save even more space.
That is, indeed, only available in btrfs
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