How does logical volume helps in performance in AIX..Should have posted IBM

We are setting up a new DB server and the disks are in RAID5 config,Does putting data and index in different logical volumes helps in performance

(I hope I'm not falling for April Fools joke here...)
Hi Maran,
As someone already answered, if both volumes are striped against all available disks, you can put everything in one volume and expect equal or better performance.
However, I want to warn you from optimizing the disk structure without knowing that your database will really bottleneck on disk access to index and data blocks. My storage manager and I wasted countless hours with such optimizations before realizing that we are wasting our time because the application code contains so many functions that disk IO is not even close to being an issue.
-- Chen

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