zfs
ubuntu 18.04 on xenserver and freenas with zfs volume over iscsi


zfs-volume: 

	Processor: Intel Xeon E5620 @ 2.40GHz (1 Core), Motherboard: Xen HVM domU (4.7.6-6.5.1.xcpng BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 1024MB, Disk: 9GB, Graphics: EFI VGA

	OS: Ubuntu 18.04, Kernel: 4.15.0-51-generic (x86_64), Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 800x600, System Layer: Xen HVM domU 4.7.6-6.5.1.xcpng


IOzone 3.465
Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance
MB/s > Higher Is Better
zfs-volume . 2906.53 |=========================================================


IOzone 3.465
Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance
MB/s > Higher Is Better
zfs-volume . 298.20 |==========================================================