DRDB2 (failed to one)
2 x Intel Xeon E5606 testing with a Dell 00NH4P and Matrox MGA G200eW WPCM450 on Linux via the Phoronix Test Suite.


EXT4 Raid 5: 

	Processor: 2 x Intel Xeon E5606 @ 2.13GHz (8 Cores), Motherboard: Dell 00NH4P, Chipset: Intel 5520 I/O + ICH9, Memory: 24576MB, Disk: 67GB PERC H700 + 1933GB PERC H700, Graphics: Matrox MGA G200eW WPCM450, Network: Broadcom NetXtreme II BCM5709 Gigabit

	OS: Linux, Kernel: 2.6.32-5-amd64 (x86_64), Display Driver: matrox, Compiler: GCC 4.4.5, File-System: ext4


Gzip Compression
2GB File Compression
Seconds < Lower Is Better
EXT4 Raid 5 . 20.72 |==========================================================


SQLite 3.7.3
12,500 INSERTs
Seconds < Lower Is Better
EXT4 Raid 5 . 8.10 |===========================================================


Apache Benchmark 2.2.17
Static Web Page Serving
Requests Per Second > Higher Is Better
EXT4 Raid 5 . 15308.39 |=======================================================


PostgreSQL pgbench 9.0.4
TPC-B Transactions Per Second
TPS > Higher Is Better
EXT4 Raid 5 . 2665.38 |========================================================


Compile Bench 0.6
Test: Initial Create
MB/s > Higher Is Better
EXT4 Raid 5 . 136.72 |=========================================================


Compile Bench 0.6
Test: Compile
MB/s > Higher Is Better
EXT4 Raid 5 . 637.73 |=========================================================


Compile Bench 0.6
Test: Read Compiled Tree
MB/s > Higher Is Better
EXT4 Raid 5 . 882.45 |=========================================================


IOzone 3.347
8GB Write Performance
MB/s > Higher Is Better
EXT4 Raid 5 . 344.31 |=========================================================


IOzone 3.347
8GB Read Performance
MB/s > Higher Is Better
EXT4 Raid 5 . 4141.64 |========================================================


Dbench 4.0
1 Clients
MB/s > Higher Is Better
EXT4 Raid 5 . 366.02 |=========================================================


Dbench 4.0
12 Clients
MB/s > Higher Is Better
EXT4 Raid 5 . 1828.30 |========================================================


Dbench 4.0
48 Clients
MB/s > Higher Is Better
EXT4 Raid 5 . 2209.23 |========================================================


Dbench 4.0
128 Clients
MB/s > Higher Is Better
EXT4 Raid 5 . 1737.41 |========================================================


FS-Mark 3.3
1000 Files, 1MB Size
Files/s > Higher Is Better
EXT4 Raid 5 . 204.48 |=========================================================


Flexible IO Tester 1.57
Intel IOMeter File Server Access Pattern
Seconds (Run Time) < Lower Is Better
EXT4 Raid 5 . 3708.43 |========================================================


Threaded I/O Tester 0.3.3
64MB Random Read - 32 Threads
MB/s > Higher Is Better
EXT4 Raid 5 . 12915.44 |=======================================================


Threaded I/O Tester 0.3.3
64MB Random Write - 32 Threads
MB/s > Higher Is Better
EXT4 Raid 5 . 2.11 |===========================================================


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
EXT4 Raid 5 . 2986 |===========================================================


AIO-Stress 0.21
Random Write
MB/s > Higher Is Better
EXT4 Raid 5 . 1677.64 |========================================================


Unpacking The Linux Kernel
linux-2.6.32.tar.bz2
Seconds < Lower Is Better
EXT4 Raid 5 . 16.88 |==========================================================