For client engagements that include the deployment of hardware capacity for processing and/or storage, GraphStream uses COTS general-purpose servers as building blocks to deliver this capacity. We can deliver a wide variety of server configurations in response to specific client requirements, but the majority of the servers that we are currently deploying are based on Intel Xeon platforms.
The capabilities of the COTS servers that GraphStream provides are determined almost entirely by reference designs defined by the suppliers of the individual internal components, including:
There are many competing suppliers of server products that are based on the platform reference designs listed above. Points of differentiation among these suppliers include chassis design; management and monitoring functionality; built-in self-diagnostic capabilities; support offerings; and price.
GraphStream's clients often require servers from a specific supplier, based on these points of differentiation and on their existing installed base. Dell and HP are among the suppliers whose server products are specified most frequently by GraphStream's clients. Each of these suppliers offers a wide selection of server models, each optimized for a specific range of use cases.
Hypervisor-based virtualization makes it possible to run multiple operating system instances on a single physical server. ScaleMP provides virtualization software that does the opposite, making it possible to run a single operating system instance across multiple physical servers, by aggregating the processing, memory, storage, and I/O resources of the physical servers into a single virtual server.