I'm moving a webmail service over to use a postgresql database for storage and wanted to get any tips for optimizing performance. The machine will be a multiprocessor (either 2 or 4 cpu ) system with a raid array. What layout should be used? I was thinking using about using a raid 1+0 array to hold the database but since I can use different array types, would it be better to use 1+0 for the wal logs and a raid 5 for the database?
The database gets fairly heavy activity (the system handles about 500MB of incoming and about 750MB of outgoing emails daily). I have a fairly free rein in regards to the system's layout as well as how the applications will interact with the database since I'm writing the code. -- Suchandra Thapa <[EMAIL PROTECTED]>
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