Understanding the Software Configurations
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One core and 16 GB of memory reserved for the second and third Root Domains in this
configuration.
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15 cores and 240 GB of memory available from each of these Root Domains for the
CPU and memory repositories.
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A total of 30 cores (15 x 2) and 480 GB of memory (240 GB x 2) available for the CPU
and memory repositories from these two Root Domains.
A total of 44 cores (14 + 30 cores) are therefore parked in the CPU repository, and 704 GB of
memory (224 + 480 GB of memory) are parked in the memory repository and are available for
the I/O Domains.
With Root Domains, connections to the 10GbE client access network go through the physical
ports on each 10GbE NIC, and connections to the IB network go through the physical ports
on each IB HCA, just as they did with dedicated domains. However, cards used with Root
Domains must also be SR-IOV compliant. SR-IOV compliant cards enable VFs to be created on
each card, where the virtualization occurs in the card itself.
The VFs from each Root Domain are parked in the IB VF and 10GbE VF repositories, similar
to the CPU and memory repositories, as shown in the following graphic.
Even though the VFs from each Root Domain are parked in the VF repositories, the VFs are
created on each 10GbE NIC and IB HCA, so those VFs are associated with the Root Domain
Understanding the System 51
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