I’ve purchased 3 WD Red drives to use in a file server I’m building, initially planning to use them in RAID 5, but after very poor performance I’ve tried 2 of them in RAID 0, with better, but still poor results.
It’s running on a motherboard with an Intel C206 chipset, Xeon processor and 8GB RAM. Operating System is Windows Server 2012, and all drivers including Intel Rapid Storage Technology have been installed.
After initially setting up the 3 drives in RAID 5, I noticed that performance of the computer was very bad and decided to run a benchmark from the Command line by typing:
winsat disk -drive c
The results were extremely bad: 4MB/s seq read, 1MB/s seq write!
I then wiped and reconfigured the system so that it had 2 drives in RAID 0, plus one stand alone drive (with plans to buy a 4th drive and set it up in RAID 10), and ran the same benchmark. While a big improvement, I am still experiencing particularly poor read results from the RAID 0 array, worse than those from a standalone drive (although the write speeds seem normal):
RAID 0 Results:
Random Read: 2.06 MB/s
Sequential Read: 40.68 MB/s
Sequential Write: 290.66 MB/s
Standalone Drive Results:
Random Read: 3.42 MB/s
Sequential Read: 70.94 MB/s (even this is poor compared to the 110MB/s+ that I get on my single consumer grade Samsung 1TB drive?)
Sequential Write: 150.32 MB/s
A look online indicates that the 4K sector size may have something to do with the problem, although I have been unable to find anything that tells you how to go about rectifying this issue?
I’d much appreciate any advise.