> I have used lz4 compression as it has high performance and data deduplication dedup=on to save space.<p>Nice writeup but IMHO it's wrong to assume enabling dedup will make sense under any circumstance, especially regarding the performance drawbacks on systems that can't handle it. It might deserve a little more consideration than just setting it on by default in a somewhat copy-pasteable command. Oracle published a nifty guide on how to proceed with dedup:<p><a href="http://www.oracle.com/technetwork/articles/servers-storage-admin/o11-113-size-zfs-dedup-1354231.html" rel="nofollow">http://www.oracle.com/technetwork/articles/servers-storage-a...</a>