Management interface for cards powered by the "mfi" driver?
Erik Trulsson
ertr1013 at student.uu.se
Wed Jun 18 05:27:24 UTC 2008
On Tue, Jun 17, 2008 at 11:15:30PM -0500, Karl Denninger wrote:
> On Mon, Jun 16, 2008 at 08:20:53PM -0500, Karl Denninger wrote:
> > On Thu, May 08, 2008 at 10:30:01AM +0100, Pete French wrote:
> > > > I assume SCSI is the best path forward (either SA/SCSI or traditional) but
> > > > have been out of the loop on the card(s) that work properly for a good long
> > > > while.
> > >
> > > HP P400 cards are PCI express and SAS - they work very well under FreeBSD.
> > > I've also used the cheaper E200 and that appears to be fine too, though I
> > > havent run it for as long as the 400's.
> > >
> > > http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/smartarrayp400/index.html
> > >
> > > -pete.
> > >
> >
> > Following upon my own stuff, I just laid hands on a Quad-Xeon machine with an
> > Intel SRCSAS18E card in it, and well, the only way I can describe it is "oh
> > my GOD!"
> >
> > Off a couple of older 250GB SATA drives, mirrored, it sustained 70MB/sec over
> > the entire disk's volume space on reads and had ZERO visible impact on CPU
> > OR another process doing mixed I/O at the same time (!).
> >
> > That's impressive.
> >
> > If its stable.
> >
> > The cards are not cheap, however.
> >
> > The only "gotcha" is that all configuration of the drive(s) appears to be
> > done through the controller. I assume I COULD use something like gmirror,
> > but see little reason to do so.
> >
> > -- Karl Denninger
> > karl at denninger.net
>
> Ok, another followup!
>
> Is there a mangement interface program for the "mfi" driver somewhere? I
> rooted around in "ports" but didn't find one, nor on the base system.
>
> The Linux ones want to talk to the "amr" driver which is the older LSI Logic
> MegaRAID boards, not the newer ones that the mfi driver talks to.
>
> No management tool = el-sucko, because you can't rebuild a failed disk or
> even shut the alarm on the board off!
The sysutil/linux-megacli port looks like it might do the trick.
--
<Insert your favourite quote here.>
Erik Trulsson
ertr1013 at student.uu.se
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