Re: IBM i 7.4 and IBM i Portfolio give strong foundation for continuing innovation

[Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx>]

Direct external access to memory just bothers me, especially with 
rowhammer exploits.

But then I don't like Alexa, either. :)


On 4/23/2019 5:22 PM, Vernon Hamberg wrote:
> Paul
>
> You mention HANA - do you mean to speak about that relative to IBM i?
>
> It'd be a question to ask, but I did not see that Db2 Mirror for i is 
> duplicating memory synchronously. Maybe you aren't saying that, but it 
> is confusing to me.
>
> I am not too concerned about R0CE - it's been over 3 years that IBM 
> are working on this new LPP, time enough to work things out.
>
> Cheers
> Vern
>
> On 4/23/2019 4:36 PM, Musselman, Paul wrote:
> > RDMA sounds like a DDM file on steroids-- with a communication link a 
> > lot closer to the hardware.  And, if you're storing all your data in 
> > main memory (HANA, anyone), it lets more than 1 machine read that data.
> >
> > Paul E Musselman
> > PaulMmn@xxxxxxxxxxxxx
> >
> > -----Original Message-----
> > From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of 
> > Joe Pluta
> > Sent: Tuesday, April 23, 2019 3:25 PM
> > To: midrange-l@xxxxxxxxxxxxxxxxxx
> > Subject: Re: IBM i 7.4 and IBM i Portfolio give strong foundation for 
> > continuing innovation
> >
> > I know I'm old, but RDMA gives me the heebie jeebies.
> >
> > On 4/23/2019 1:37 PM, Jim Oberholtzer wrote:
> > > No but you clearly need two partitions to cluster, and the storage 
> > > must be SAN, and that RoCE adapter (both sides now)  but if I heard 
> > > Steve Will correctly this morning Power9 would be able to virtualize 
> > > the RoCE between partitions on the same machine.