I am looking at building a NAS. 24 X 500GB 2.5" SATA2 7200RPM 16MB cache drives all in a 2U box with 8GB RAM and 4 CPUs.
I can go two ways:
- 1 24+ Port RAID Controller making the whole array one single RAID 10 array
- 2 12+ Port RAID Controllers making up two separate RAID10 arrays with only 12 drives per array.
The question is regarding performance. This NAS will has 2 GigE network connections that will be BINDED at the switch to create 2Gig connection for the NAS to the servers.
The data will be for hosting VPSs with typical mysql/apache/smtp/pop3 traffic.
What configuration will be best in terms of performance? Will I get better performance out of two smaller arrays on separate controllers? Or just one big single one?