Oracle SuperCluster T5-8, Owner'S Manual

Page: 50 / 356

Understanding the Software Configurations
CPU and memory repositories contain resources not only from the Root Domains, but also
any parked resources from the dedicated domains. Whether CPU core and memory resources
originated from dedicated domains or from Root Domains, once those resources have been
parked in the CPU and memory repositories, those resources are no longer associated with their
originating domain. These resources become equally available to I/O Domains.
In addition, CPU and memory repositories contain parked resources only from the compute
server that contains the domains providing those parked resources. In other words, if you have
two compute servers and both compute servers have Root Domains, there would be two sets
of CPU and memory repositories, where each compute server would have its own CPU and
memory repositories with parked resources.
For example, assume you have four domains on your compute server, with three of the four
domains as Root Domains, as shown in the previous graphic. Assume each domain has the
following IB HCAs and 10GbE NICs, and the following CPU core and memory resources:
■
One IB HCA and one 10GbE NIC
■
16 cores
■
256 GB of memory
In this situation, the following CPU core and memory resources are reserved for each Root
Domain, with the remaining resources available for the CPU and memory repositories:
■
Two cores and 32 GB of memory reserved for the last Root Domains in this configuration.
14 cores and 224 GB of memory available from this Root Domain for the CPU and memory
repositories.
50 Oracle SuperCluster T5-8 Owner's Guide • May 2016