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Which has better performance Raid-1 or RAID-5 ?
I am planning to use raid 5 and my disk array consist of two ultra320 and one ultra3. Since the transfer rate of ultra3 is slower is it going to affect the whole transfer rate and wasteful to use two ultra320? Also should I use a ultra320 or ultra3 raid controller?
We're going to re-do the disk configuration on a server due to need for more disk space. It's currently mirrored, raid 1, with 2 10,000rpm drives. We are planning to switch to raid 5 with 4 15,000 drives. Would this be bad for performance?