1788665 – this is the number of one of the most widely cited and read SAP notes. It is about SAP HANA running on VMware vSphere VMs and there is a huge installed base – however so far restricted to non-productive use only. Based on today’s update to the SAP note you can now run virtual HANA in production as well. So let us warmly welcome HANA to the Software-Defined Data Center and take a closer look at the newest facts.
SAP HANA to run in scale-up mode
You can now run SAP HANA in scale-up mode (no scale-out). Each SAP HANA instance / virtual machine is sized in consistency with the existing SAP HANA sizing guidelines. The maximum size of a virtual SAP HANA instance is hereby limited by the max. size of a virtual machine on VMware vSphere 5.5, which is 64 vCPUs and 1 TB of memory (personal note: vSphere 6.0 -> 4TB vRAM, 128vCPU). A sizing guideline and best practice will be provided by VMware.
Multiple VMs per ESX host
Unfortunately multiple SAP HANA virtual machines on a single physical server are currently not supported (only in non-productive environments). However, from my point of view, general availability and multiple vm support is just a question of the (very near) future.
vSphere functionality for high availability (HA and DRS) and business continuity (vMotion)
Based on the VMware best practice guide, requirements and configuration guide VMware HA will be supported and additionally you can move running HANA VMs (dev and prod) between ESX hosts using vMotion. The maximum VM size is 1TB vRAM, 64vCPUs (vSphere 6.0 -> 4TB vRAM, 128vCPU).
SAP and VMware support
There will be an end-to-end SAP/VMware support. SAP will analyze functional and physical performance issues, while VMware will analyze all virtualization-related issues.
Tailored Data Center Integration
With Tailored Data Center Integration (TDI), you can move SAP HANA into a private cloud and integrate it into an existing, well-established data center, providing multiple benefits. You can combine the advantages of a virtual HANA and a physical HANA (TDI) with enterprise storage, as shown in the figure below. With this approach you can run virtualized SAP HANA systems in scale-up mode up to 1 TB and also have a solution for scale-up beyond 1 TB as well as for scale-out. If you want to learn more about TDI please check out here.
The following best practice example shows how you can run your applications in a metro data center setup (data centers A and B) in combination with a DR site (data center C).
Bottom line: HANA is coming of age and truly starts integrating into the data centers!
More stuff from today:
- SAP/VMware press announcement on SAP HANA for Production Use on VMware vSphere 5.5
- Keynote from Pat Gelsinger (CEO VMware) at EMC World
- Pulse Blog by EMC IT’s Mike Harding: ERP REDEFINED – EMC IT virtualizes SAP HANA with VMware and EMC IT virtualized HANA overview