Date: Thu, 19 Jan 2012 20:57:37 -0800 From: Freddie Cash <fjwcash@gmail.com> To: John Kozubik <john@kozubik.com> Cc: freebsd-fs@freebsd.org Subject: Re: sanity check: is 9211-8i, on 8.3, with IT firmware still "the one" Message-ID: <CAOjFWZ4oQB3=Pss3K=td%2Be_pm9G-nvGfdGEdRYMKK7AAo0nh4Q@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.1201192053050.19710@kozubik.com> References: <alpine.BSF.2.00.1201191604510.19710@kozubik.com> <CAOjFWZ5mvrhDrxJpZbk0%2B9JrRM93oz8fkNb4x1G59hoFYARt-A@mail.gmail.com> <alpine.BSF.2.00.1201192053050.19710@kozubik.com>
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On Jan 19, 2012 8:54 PM, "John Kozubik" <john@kozubik.com> wrote: > > > Hi Freddie, > > > On Thu, 19 Jan 2012, Freddie Cash wrote: > >> On Thu, Jan 19, 2012 at 4:08 PM, John Kozubik <john@kozubik.com> wrote: >>> >>> We're about to invest heavily in a new ZFS infrastructure, and our plans are >>> to: >>> >>> - wait for 8.3, with the updated 6gbps mps driver >>> - Install and use LSI 9211-8i cards with newest "IT" firmware >>> >>> This appears to be the de facto standard for ZFS HBAs ... >>> >>> Is there any reason to consider other cards/vendors ? >> >> >> We're using the SuperMicro AOC-USAS2-L8i controllers with great >> success, via the mps driver in 8.2-STABLE (originally, when we >> installed the box), now running 9.0-RELEASE. WIth the 9.0 IT >> firmware. Haven't tried the 10.0 firmware yet. >> >> We're currently only using ZFS for storing backups (compression, >> dedupe, and snapshots are perfect for this). But we have plans to use >> similar hardware as these boxes as SAN/NAS boxes for VM servers. > > > > Is the AOC-USAS2-L8i *actually* identical to the 9211-8i, or is it a different implementation of the same chipset ? They're both using the LSI2008 chipset. Isn't the 9200 a RAID controller that can be flashed with the IT firmware to turn it into a 'dumb' SATA controller? The USAS2 is just a SATA controller. No onboard RAM, no BBU, no frills.
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