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.
Remember if your primary partition has 4 cores of IBM I, the second partition needs 4 cores as well. So you must have 8 cores total in my example. There is no CBU or Backup system available for this configuration.
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Stefan Tageson
Sent: Tuesday, April 23, 2019 12:10 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: IBM i 7.4 and IBM i Portfolio give strong foundation for continuing innovation
Absolutely a critical component without doubt.
Initially the requirements for it will stop most shops from even being able to try it. Key to this are the requirement for a dedicated RoCE > > adapter to each partition with 100Gb throughput. Virtual adapters do not qualify.
Am I misreading or misunderstanding ( or both, quite common ) that I need three partitions to set up a cluster?
One system for the quorum disk? Any information about largest distance between the nodes?
Best regards
stefan.tageson@xxxxxxxx
M +46 732 369934
Sensitivity: Internal
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