I will be building a server shortly to deploy into an environment that already has about 5-7 vm's running on an older server in a RAID 5 configuration using near line SAS drives. The new server will be a Dell with a H710 raid controller with 512MB NV cache and 8x900K SAS drives. I would like to know if a RAID 10 configuration using all the drives is the best way to go, or would four RAID 1 drives be better? The environment is about 70 users, there is Exchange 2010, a terminal server for about 15-20 users, no SQL however there is a server that runs pervasive SQL.
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