RAID5/6 Offload via IOATDMA

RAID5/6 Offload via IOATDMA

[Errol Neal]

Hi. I'm trying to get additional information about this feature. I know that there were some patches added since 2.6.32 for more recent xeon processors. I'm having a hard time getting specifics on the hardware required around this. 
Am I at the right list to inquire about this feature?

RE: RAID5/6 Offload via IOATDMA

[Jiang, Dave]

> -----Original Message-----
> From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-
> owner@vger.kernel.org] On Behalf Of Errol Neal
> Sent: Thursday, July 28, 2011 5:02 PM
> To: linux-raid@vger.kernel.org
> Subject: RAID5/6 Offload via IOATDMA
> 
> Hi. I'm trying to get additional information about this feature. I know that
> there were some patches added since 2.6.32 for more recent xeon
> processors. I'm having a hard time getting specifics on the hardware required
> around this.
> Am I at the right list to inquire about this feature?

I think this is what you are looking for:
http://www.intel.com/p/en_US/embedded/hwsw/hardware/xeon-c5500-c3500-3420/overview

Re: RE: RAID5/6 Offload via IOATDMA

[Errol Neal]

On Thu, 07/28/2011 08:10 PM, "Jiang, Dave" <dave.jiang@intel.com> wrote:
> > -----Original Message-----
> > From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-
> > owner@vger.kernel.org] On Behalf Of Errol Neal
> > Sent: Thursday, July 28, 2011 5:02 PM
> > To: linux-raid@vger.kernel.org
> > Subject: RAID5/6 Offload via IOATDMA
> > 
> > Hi. I'm trying to get additional information about this feature. I know that
> > there were some patches added since 2.6.32 for more recent xeon
> > processors. I'm having a hard time getting specifics on the hardware required
> > around this.
> > Am I at the right list to inquire about this feature?
> 
> I think this is what you are looking for:
> http://www.intel.com/p/en_US/embedded/hwsw/hardware/xeon-c5500-c3500-3420/overview

Thanks so much! So any motherboard with a 3420 chipset should have this technology or is it embedded in the processor? 

RE: RE: RAID5/6 Offload via IOATDMA

[Jiang, Dave]

> -----Original Message-----
> From: Errol Neal [mailto:eneal@businessgrade.com]
> Sent: Thursday, July 28, 2011 5:48 PM
> To: Jiang, Dave
> Cc: linux-raid@vger.kernel.org
> Subject: Re: RE: RAID5/6 Offload via IOATDMA
> 
> On Thu, 07/28/2011 08:10 PM, "Jiang, Dave" <dave.jiang@intel.com> wrote:
> > > -----Original Message-----
> > > From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-
> > > owner@vger.kernel.org] On Behalf Of Errol Neal
> > > Sent: Thursday, July 28, 2011 5:02 PM
> > > To: linux-raid@vger.kernel.org
> > > Subject: RAID5/6 Offload via IOATDMA
> > >
> > > Hi. I'm trying to get additional information about this feature. I
> > > know that there were some patches added since 2.6.32 for more recent
> > > xeon processors. I'm having a hard time getting specifics on the
> > > hardware required around this.
> > > Am I at the right list to inquire about this feature?
> >
> > I think this is what you are looking for:
> > http://www.intel.com/p/en_US/embedded/hwsw/hardware/xeon-c5500-
> c3500-3
> > 420/overview
> 
> Thanks so much! So any motherboard with a 3420 chipset should have this
> technology or is it embedded in the processor?

You need the right processor. But of course the processor matches up with the appropriate chipset as well.