How many disks to use for eight channel RAID controller

Posted by Tvrtko on Server Fault See other posts from Server Fault or by Tvrtko
Published on 2009-09-03T12:44:21Z Indexed on 2010/03/17 18:31 UTC
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Filed under:

raid

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size

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3ware

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sas

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raid10

I have a 3ware 8 channel SAS controller and a back plane extender (also 8 channel) which can take 16 drives. I will be creating a single RAID 10 volume.

I know that adding more drives has positive effect on performance, but I'm not sure if adding more than 8 drives on an 8 channel controller will have any positive impact at all. Am I wrong?

Should I put 16 drives for best performance? Would 8 drives give me the same performance?

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