I am happy to announce that after a very long review and publication cycle the “Architecture Guidelines and Best Practices for Deployments of SAP HANA on VMware vSphere Guide” is now published.
The guide can be downloaded from our central VMware SAP page.
The chapter on sizing tackles the complex subject getting HANA VM’s sized properly, and provides incredible value to the reader as it provides guidance that explains how to size beyond physical to virtual so your organization can get it right the first time, every time.
Building a virtual SAP HANA VM requires to know not only the needed RAM, but also the number of needed CPUs to support this RAM. Without this information, it is not possible to create a VM.
The sizing guidelines published in this guide follow the SAP currently requested CPU socket / CPU core to RAM ratios or, when available describe how to perform a SAPS sizing. Using these guideless will provide you with SAP supported VM configurations.
I will provide some additional sizing examples that focus on SAPS and vCPU sizing, in addition to the already provided “NUMA” node based sizing example. Please remember, primary sizing figure for SAP HANA is memory and CPU is second and a SAP HANA configuration is optimized to optimal memory performance with lowest latency.