Many Cores per Socket or Single-Core Socket Mystery

May 11, 2015 Shady ElMalatawey 3

Hi All During some readings, I remembered the eternal debatable Question when creating SMP VM (VM with many vCPUs): “Which is better: many Cores in a single socket or many Sockets each with single core..??” I remember how many times I debated for hours with my technical manager -while reviewing some designs- about the same question, but neither of us could prove a bit. To answer this question, we have to review some concepts: NUMA CPU Configuration: Non Uniform Memory Access (NUMA) is a CPUs configuration, in which each CPU has some Memory DIMMs local and connected to it. Each CPU can access both its local memory DIMMs with lowest latency and the remote DIMMs with higher latency using Interconnecting […]

Virtualizing Oracle Databases on vSphere 5 Best Practices

February 3, 2015 Shady ElMalatawey 0

In our next post, we will talk about Oracle Databases as our next candidate of Virtualization. Oracle DBs are known to be heavy duty, Tier 0 or Tier 1 servers that losing it can lead to business disruption significantly. Oracle is a Strategic Partner of VMware. This provides a great support and compatibility of Oracle DBs above or below vSphere Platform. As we’ll see in following sections, Oracle DB is supported as a virtual application above vSphere Platform or as a store for vSphere data used by vCenter Server for example. As Microsoft SQL Servers, Oracle Applications and Database has its own features that are aligned with vSphere features to push Oracle Databases performance, availability and scalability to another level. […]