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Recommended/optimal disk striping/block size

Hi All,

Are there any recommended settings for RAID and filesystem stripe and block sizes?

I'm standing up a 3-node, K=1 cluster. In each server, I have 15k SAS drives and I plan on a 2x RAID-1 for OS and a 14x RAID-10 for data.

EDIT: I looked in the 7.x install guide and didn't find any mention. And a search for block, stripe, etc in this forum didn't reveal anything.

EDIT 2: Using CentOS 6.5 64-bit. Stripe sizes possible on RAID controller: 64KB, 128KB, 256KB, 512KB, and 1MB.

Any advice would be appreciated. Thanks!

--steve

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