Disk throughput comparison
Intel Xeon E5-2667 v3 testing with a ASRockRack EPC612D4U-2T8R and NVIDIA Quadro K2200 on Debian 8.0 via the Phoronix Test Suite.


btrfs - 14 SSDs: 

	Processor: Intel Xeon E5-2667 v3 @ 3.60GHz (16 Cores), Motherboard: ASRockRack EPC612D4U-2T8R, Chipset: Intel Haswell-E DMI2, Memory: 32768MB, Disk: 15 x 1024GB Samsung SSD 850 + 256GB Samsung SSD 850, Graphics: NVIDIA Quadro K2200 4096MB, Audio: NVIDIA Device 0fbc, Monitor: Samsung SMS24A350H, Network: Intel 10-Gigabit X540-AT2

	OS: Debian 8.0, Kernel: 4.3.1 (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.16.4, Display Driver: NVIDIA 340.96, Compiler: GCC 4.9.2 + CUDA 6.0, File-System: btrfs

LVM striped - 14 SSDs: 

	Processor: Intel Xeon E5-2667 v3 @ 3.60GHz (16 Cores), Motherboard: ASRockRack EPC612D4U-2T8R, Chipset: Intel Haswell-E DMI2, Memory: 32768MB, Disk: 15 x 1024GB Samsung SSD 850 + 256GB Samsung SSD 850, Graphics: NVIDIA Quadro K2200 4096MB, Audio: NVIDIA Device 0fbc, Monitor: Samsung SMS24A350H, Network: Intel 10-Gigabit X540-AT2

	OS: Debian 8.0, Kernel: 4.3.1 (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.16.4, Display Driver: NVIDIA 340.96, Compiler: GCC 4.9.2 + CUDA 6.0, File-System: ext4

MD - 14 SSDs: 

	Processor: Intel Xeon E5-2667 v3 @ 3.60GHz (16 Cores), Motherboard: ASRockRack EPC612D4U-2T8R, Chipset: Intel Haswell-E DMI2, Memory: 32768MB, Disk: 15 x 1024GB Samsung SSD 850 + 256GB Samsung SSD 850, Graphics: NVIDIA Quadro K2200 4096MB, Audio: NVIDIA Device 0fbc, Monitor: Samsung SMS24A350H, Network: Intel 10-Gigabit X540-AT2

	OS: Debian 8.0, Kernel: 4.3.1 (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.16.4, Display Driver: NVIDIA 340.96, Compiler: GCC 4.9.2 + CUDA 6.0, File-System: ext4

LVM striped - 14 SSDs, ext4 striped: 

	Processor: Intel Xeon E5-2667 v3 @ 3.60GHz (16 Cores), Motherboard: ASRockRack EPC612D4U-2T8R, Chipset: Intel Haswell-E DMI2, Memory: 32768MB, Disk: 15 x 1024GB Samsung SSD 850 + 256GB Samsung SSD 850, Graphics: NVIDIA Quadro K2200 4096MB, Audio: NVIDIA Device 0fbc, Monitor: Samsung SMS24A350H, Network: Intel 10-Gigabit X540-AT2

	OS: Debian 8.0, Kernel: 4.3.1 (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.16.4, Display Driver: NVIDIA 340.96, Compiler: GCC 4.9.2 + CUDA 6.0, File-System: ext4

btrfs - 3 RAID0 @ 4 SSDs: 

	Processor: Intel Xeon E5-2667 v3 @ 3.60GHz (16 Cores), Motherboard: ASRockRack EPC612D4U-2T8R, Chipset: Intel Haswell-E DMI2, Memory: 32768MB, Disk: 256GB Samsung SSD 850 + 7 x 1024GB Samsung SSD 850 + 2 x 4092GB Logical Volume, Graphics: NVIDIA Quadro K2200, Audio: NVIDIA Device 0fbc, Monitor: Samsung SMS24A350H, Network: Intel 10-Gigabit X540-AT2

	OS: Debian 8.0, Kernel: 4.3.1 (x86_64), Desktop: Xfce, Compiler: GCC 4.9.2 + CUDA 6.0, File-System: btrfs


IOzone Throughput 3.405
Number of threads: 1 - Test File Size (per thread): 20GB - Disk Test: Read Performance
MB/s > Higher Is Better
btrfs - 14 SSDs ..................... 7584.78 |================================
LVM striped - 14 SSDs ............... 7390.48 |===============================
MD - 14 SSDs ........................ 1873.56 |========
LVM striped - 14 SSDs, ext4 striped . 2631.24 |===========
btrfs - 3 RAID0 @ 4 SSDs ............ 7492.19 |================================


IOzone Throughput 3.405
Number of threads: 4 - Test File Size (per thread): 20GB - Disk Test: Read Performance
MB/s > Higher Is Better
btrfs - 14 SSDs ..................... 3121.56 |=====================
LVM striped - 14 SSDs ............... 3085.28 |=====================
MD - 14 SSDs ........................ 3112.47 |=====================
LVM striped - 14 SSDs, ext4 striped . 3117.15 |=====================
btrfs - 3 RAID0 @ 4 SSDs ............ 4659.88 |================================


IOzone Throughput 3.405
Number of threads: 1 - Test File Size (per thread): 20GB - Disk Test: Write Performance
MB/s > Higher Is Better
btrfs - 14 SSDs ..................... 2368.75 |================================
LVM striped - 14 SSDs ............... 1997.38 |===========================
MD - 14 SSDs ........................ 1923.80 |==========================
LVM striped - 14 SSDs, ext4 striped . 2017.02 |===========================
btrfs - 3 RAID0 @ 4 SSDs ............ 2333.50 |================================


IOzone Throughput 3.405
Number of threads: 4 - Test File Size (per thread): 20GB - Disk Test: Write Performance
MB/s > Higher Is Better
btrfs - 14 SSDs ..................... 2823.45 |=====================
LVM striped - 14 SSDs ............... 2622.72 |====================
MD - 14 SSDs ........................ 2647.32 |====================
LVM striped - 14 SSDs, ext4 striped . 2591.62 |====================
btrfs - 3 RAID0 @ 4 SSDs ............ 4221.11 |================================