I'm building up a server for our use : we are six , basically using the server for mail and file storage. I'm interesting in finding the best hard drive configuration so that I get excellent performance and of course excellent reliability.
I was thinking of doing the following :
Raid 0 of two Seagate Savvio 15K.2 2.5" 146GB / SAS 2.0 / 15000rpm / 16MB Cache / 2.9ms / 24x7 / 1.6Mh MTB for the OS
Raid 5 of three Western Digital RE4-GP 3.5" 1.5TB SATA-II / 5400rpm / 64MB Cache / 8.9ms / NCQ / 24x7 for Data, partitioned in 3 : datafile, exchange database, local OS backup
One Corsair Performance 3 SSD / SATA-III / 128GB / 410 MB/s read / 210MB/s write for swap, exchange logs and maybe other things you would recommend ?
The Raid 0 and Raid 5 would be configured on a HP Smart Array P410i and the SSD on a Highpoint Rocket620 2 Port SATA3 Controller.
The total price for my 6 hard drives is between 1400$ and 1500$, which I think is extremely interesting.
What do you think ? Would you suggest a better scenario ?