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Should a RAID-5 not span multiple channels?

NJK-Work
Honored Contributor

Should a RAID-5 not span multiple channels?

Say I have a DL360 wih 8 drive bays.  I have bay 1 and 2 for my OS (mirrored).  I want to add a 3 drive RAID-5.  Should I use bays 3, 4, and 5 (and thus the RAID-5 would be spanned across 2 channels), or should I use bays 5, 6, and 7 to keep all drives on the same channel?  What is best practice?  What are the pros/cons of each way?

Thanks

NK