On Oct 29, 2009, at 11:11 AM, Neil Aggarwal wrote: > RAID 10 is striping across mirrored drives. > > So, if you have 4 x 1TB drives, think of it as two separate > 1 TB volumes. The system will write half your data to > volume A and the other half to volume B. The data in volume > A and B do not overlap. > > Now, each volume is composed of a mirrored set of drives. > Anything written to volume A is actually stored on two drives. > Anything written to volume B is actually stores on the other two > drives. > > Does this make sense? > Let me know if you need any more explanation. No it makes sense. I am contemplating if I really need 4 x 1tb in this system. I mean how much space with some photo's, web pages and MySQL take up if there are 5,000 subscribers to start up? Would 2 x 1TB enterprise drives be enough mirrored? > Also, when you move to a hosted solution, I would appreciate > your considering my company for it. Sure, I will be doing a lot of research on that for sure.