High performance hard drive solution

[Badgerpoo]

I use a large SQL database (about 5GB+ could grow to 10GB+ or more) that several pieces of software access. What is the best hard drive solution to optimise access speed? I've been considering 10k or 15k drives in RAID0. I will make weekly backups, but the data is not critical so the array failing is not the end of the world. What matters here is performance.

 

[Badgerpoo]

The database is accessed by 3 pieces of software, 1 writing/reading and 2 reading. They all access the same data and need it real time, I don't think splitting it would be viable.