...

• Consistency of host IDs which impact containers
• Architecture
• Baselining host patches and OS layer
• No concept yet or documentation on Sparse Containers like Solaris...

Advanced Tuning of Containers

...

1. Security
2. Advanced Networking
   1. Tunnelling ect... as covered in LXC with Advanced Networking
   2. Joining LXD host networks together
3. Capping Resource Utilization
4. Sparse Containers like Solaris...

Reference

Initializing LXD  - https://insights.ubuntu.com/2016/03/16/lxd-2-0-installing-and-configuring-lxd-212/

...

Remote Container Management - https://www.stgraber.org/2016/03/19/lxd-2-0-your-first-lxd-container-312/

Possible Sparse Containers Approach - https://www.hastexo.com/blogs/florian/2016/02/21/containers-just-because-everyone-else/

Live Container Migrations - https://bobcares.com/blog/lxc-live-migration-to-minimize-business-downtime/