Date: Wed, 05 Feb 2014 08:46:41 -0600 From: Graham Allan <allan@physics.umn.edu> To: Rich <rincebrain@gmail.com>, Daniel Kalchev <daniel@digsys.bg> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: practical maximum number of drives Message-ID: <52F24ED1.1010300@physics.umn.edu> In-Reply-To: <CAOeNLuohed9PB7SXNvB40N9-8Cna6DOg0mF5vXn48%2B0rTF3Dog@mail.gmail.com> References: <52F1BDA4.6090504@physics.umn.edu> <7D20F45E-24BC-4595-833E-4276B4CDC2E3@gmail.com> <52F1DEBC.9020304@digsys.bg> <CAOeNLuqhT1y7rzA2=80jzXByrYy0cbCTaFv-5=X1KOnkFtRN8Q@mail.gmail.com> <52F1FBBA.1000909@digsys.bg> <CAOeNLuohed9PB7SXNvB40N9-8Cna6DOg0mF5vXn48%2B0rTF3Dog@mail.gmail.com>
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Is this difference not just because the 8e has two SAS buses and the 4i only one? So they are claiming a consistent 256 devices per bus. We are using the 9200-8e, and our drives are split across both buses. Do you have >256 drives on a single HBA yourself? Graham On 2/5/2014 3:24 AM, Rich wrote: > http://www.lsi.com/products/host-bus-adapters/pages/lsi-sas-9200-8e.aspx > > Claims 512. > > http://www.lsi.com/products/host-bus-adapters/pages/lsi-sas-9211-4i.aspx > > claims 256. > > I'm really extraordinarily curious to see what would happen, but do > not have >512 unused drives I could attach to a single HBA to find > out...easily. > > I have >256, but since all the stuff I can find other than SM's > documentation claims 512 for the SAS2008, that would only refute their > statement, not LSI's.
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