Whatever you install on the second drive won't actually get used unless the first drive goes south. It doesn't matter which version is installed on it. I recommend installing developer on both drives and making sure it all runs OK for a while.

When things seem to have settled in and both drives are purring along OK, then you can install consumer on the first drive if you have a burning desire to do so.

All that the Consumer install will gain you is a tad more cache memory (as it takes up a little less RAM).

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Tony Fabris