On Jun 17, 2010, at 4:50 PM, oizs wrote: > I've bought a Dell Perc 5/i because I couldn't make the onboard marvell 88sx7042 work with 8.0/8.1 or current, but as lucky as I am, the best I can do with 4x1.5tb samsung in raid5 is 60MB/s writes and 90MB/s reads, with bbu/write-back/adaptive-read-ahead. > > I was expecting at least twice of that, and I'm not sure what can I do to get that speed. (I've read man 7 tuning with no success) Switch to using RAID-10 rather than RAID-5. It's normal for RAID-5 to have worse write performance than that of a single drive. Regards, -- -ChuckReceived on Thu Jun 17 2010 - 21:55:32 UTC
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