On Sat, Dec 18, 2010 at 7:26 AM, Ian D <rewar...@hotmail.com> wrote: > Another question: all those disks are on Dell MD1000 JBODs (11 of them) > and we have 12 SAS ports on three LSI 9200-16e HBAs. Is there any point > connecting each JBOD on a separate port or is it ok cascading them in groups > of three? Is there a bandwidth limit we'll be hitting doing that? > > Thanks > > It's fine to cascade them. SAS is all point-to-point. I strongly doubt you'll hit a bandwidth constraint on the backend, especially if you have the shelves multipathed, but if that's a concern you will get more peak bandwidth putting them on separate ports.
--Tim
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