I have since setup my esata 4 disk array.
I used Kanex KTU10 Thunderbolt to USB 3.0 and eSATA on my Mac Mini
Connected to
Vantec NST-640SU3-BK NexStar HX4 Quad 3.5in SATA HDD to USB3.0/eSATA Externa
Fan speed is unfortunately an manual dial on the back of the box. On low it is not very loud and I have seen the box sleep when the server sleeps.
I got it all work fairly fast but now have a server crash issue which I posted here:
viewtopic.php?f=26&t=2267
Here is my quick start guide for others:
zpool create -d \
-o feature@async_destroy=enabled \
-o feature@empty_bpobj=enabled \
-o feature@lz4_compress=enabled \
-O compression=lz4 \
-O atime=off \
-o ashift=12 \
-O normalization=formD \
BigDog raidz1 /dev/disk2s2 /dev/disk3s2 /dev/disk4s2 /dev/disk5s2
zfs set mountpoint=/Volumes/BigDog BigDog
zfs umount -a
zfs mount -a
Recover after crash:
zpool import -R /a BigDog
zpool scrub BigDog