What a great progress – we have paved the way for SAP HANA Tailored Data Center Integration (TDI) and now you additionally have the choice to run SAP HANA on ScaleIO! So, let’s take a look at the benefits as well as the configurations we’ve used during our validation and productizing.
As described in my last post about SAP on ScaleIO (part 2), we are talking about a software-only solution that uses existing hosts’ local disks and LAN to realize a virtual SAN that has all the benefits of external storage—but at a fraction of the cost and the complexity. And it scales! You can run your SAP and non-SAP workloads from a small setup to hundreds of nodes, as shown in the figure below.
Furthermore ScaleIO is extremely flexible – you can build scale-up systems as well as scale-out systems using the same underlying architecture. And it provides choice:
- Choice to run physical and/or virtual HANA
- Choice to select from SAP certified servers for SAP HANA listed here (internal disks can be modified)
- Choice to install in an existing infrastructure or in greenfield configurations
The following configuration overview shows the components we have used during our validation.
With SAP’s hardware configuration check tool (hwcct) we demonstrated that we meet the HANA TDI KPIs. We performed scale-up as well as scale-out tests and used different storage pool configurations. Result: All KPIs can be achieved in a pure SAS configuration. For highest performance needs you can add pools for the log volumes with EMC XtremSF MLC PCIe flash cards or SSDs.
Backup, HA and DR
Use standard SAP tools and procedures (e. g. HANA Studio) to save data on a shared backup filesystem or an EMC DataDomain. Highest efficiency can be achieved with EMC Networker brbackup integration, DDboost and EMC DataDomain.
For high availability, SAP HANA Host Auto-failover is supported (from ScaleIO 1.30). In virtualized environments you can use VMware HA.
For disaster recovery purposes use SAP HANA System Replication.
IBM GPFS vs EMC ScaleIO
IBM’s GPFS based HANA solution is widely spread in the market, but I hear a lot of customers complaining about the complexity and efforts, especially when it comes to daily operations and maintenance. To understand the advantages the ScaleIO architecture brings to the table, the following overview might be useful for you:
SAP Support Note
SAP supports SAP HANA as well as traditional SAP workloads on ScaleIO. For more see SAP note 800326.