Optimal RAID setup for SQL server

Question

We have an SQL 2005 database backend for our website, currently about 10GB in size. There are a lot more reads than writes, though I don\'t have the exact statistics.

We

Answer 1

RAID 5 is good if you use a hardware controller with a decent amount of battery-backed cache RAM. Select a chunk size and configure the DB so that the stripe size (data disks * chunk size) is equal to DB write size. Make sure your data partition [is aligned / is a multiple of] the stripe size.

Otherwise, RAID 1+0 is always a good choice for DB servers.