Benchmark: 2500 concurrent users with vSphere 4.1 and SAP ERP 6.0

After the benchmark about Office SharePoint Server 2007 (171,000 concurrent users on a single server), VMware published a new performance report related to its new vSphere 4.1 virtual infrastructure. This time it’s about SAP.

Once again the company measured the performance of the system using a single physical host: a Dell PowerEdge R905 4U rackmount server with 4 AMD Quad-Core Opteron 8384 CPUs and 128GB RAM.

vSphere 4.1 started serving a single virtual machine with 2 vCPUs and 16GB vRAM, loaded with Novell SUSE Linux Enterprise Server (SLES) 10 Service Pack 2, SAP ERP 6.0 Enhancement Package 4 and IBM DB2 9.7.
The test was repeated with multiple VMs, with 2 and 4 vCPUs each.

VMware reports that this configuration can serve up to 1,200 concurrent users with 2 or 4 VMs running a grand total of 8 vCPUs.
If the amount of VMs and the amount of vCPUs is doubled than this system can serve up to 2,500 concurrent users: