[ActiveDir] RAID Configuration on DC's Part 3

[Devan Pala]

Hi,

Thanks for all your replies earlier.

Yes, it is true that the server only has 6 drive bays. The array controller has 2 internal and 2 external ports but I can only use one internally since the 6 drive bays only terminate to one SCSI port. (in this particular server). Reason for buying the high-end controller is due to standards and a proven track record in production.

Reason for not upgrading the chassis is primarily cost especially in the branch offices, the root and hub-site controllers are and will be configured entirely different, dual array controllers, quad-xeon processors etc. The whole nine yards.

The database has been sized and definitely over-engineered for the approx. 2500 users spread over 15 sites in the Americas and Europe.

I do understand that read performance for the database will be greater under a Raid 5 (stripe set with parity) config. but that means combining the Logs as well. Therefore, in order to gain both performance and recovery benefits from segregating the OS, Logs and Database to their own spindle sets makes sense over a simple Raid 1 and Raid 5 config. (just as my mate Linton put it). So I'm going with three Raid 1 arrays.

Cheers,

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