[Lustre-discuss] How smart is Lustre?

Dilger, Andreas andreas.dilger at intel.com
Wed Dec 19 13:38:59 PST 2012

On 2012-12-19, at 11:22, "Allen, Benjamin S" <bsa at lanl.gov<mailto:bsa at lanl.gov>> wrote:

Hi Jason,

2. Having two paths to your storage should speed things up. I'm guessing you'd have more than one LUN on the array, so you could do something as simple as splitting the LUNs between the two paths, or use round robin to balance the traffic between the two paths, etc.

Using round-robin is not a good idea.  This will not increase bandwidth (which is already constrained by the disk and bus) but on some RAID controllers will cause severe performance impact.

Cheers, Andreas

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