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  3. April 2019

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

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.



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