Date: Wed, 4 Jun 2014 11:02:19 -0600 From: Alan Somers <asomers@freebsd.org> To: Daniel Duerr <dd@gizmocreative.com> Cc: freebsd-stable@freebsd.org Subject: Re: SuperMicro SAS Expander compatibility question Message-ID: <CAOtMX2jVxVGK=-gT-9Ai8tuHQtJd2H9dV8cuqPpFmAaJXpP_ZA@mail.gmail.com> In-Reply-To: <BDD159E8-0348-4419-975F-C89F3AE44330@gizmocreative.com> References: <BDD159E8-0348-4419-975F-C89F3AE44330@gizmocreative.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Jun 4, 2014 at 10:20 AM, Daniel Duerr <dd@gizmocreative.com> wrote: > Hi everyone, > > I'm looking to build a new ZFS storage server on 9-STABLE. The zpool wil= l be running multiple raid2z vdevs. To accommodate a larger number of disk= s, I'd like to use a SAS Expander. I'm leaning towards the combination of = the LSI SAS 9211-4i HBA (via mps) and the Supermicro 846E16 expander chassi= s (via ses). Does anyone here have experience with this specific hardware = combination? Is it supported? Is it stable? I have copious experience with that exact expander using a similar HBA. The expander works, but there are a few caveats: 1) Early expander firmware versions had lots of bugs. You will want at least firmware 55.14.18.0 or later. They are upgradeable in the field, with difficulty. 2) Daisy chaining does not work reliably. The expander has one upstream SFF-8087 connector and two downstream SFF-8087 connectors. If you don't use the downstream connectors, then you should be fine. If you do, you'll need some luck. In certain configurations, the expander won't reliably complete discovery. -Alan > > Thanks! > Daniel > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAOtMX2jVxVGK=-gT-9Ai8tuHQtJd2H9dV8cuqPpFmAaJXpP_ZA>