Speaker
Description
Mass Memory Units remain a key component of the data-handling infrastructure within modern EO satellites. The key benchmark number of a MMU remains the storage throughput. High-end missions using highest resolution optical sensor technologies as well as optical terminals for downlink introduce new limits requiring very high throughputs beyond 20 Gbps. Other missions based on proven sensors and downlink channels remain below this number.
Within the ESA lead A3M study, as a consequence, DSI is developing a new Solid State Mass Memory (SSMM) scalable in throughput (10 Gbps – 40 Gbps) and storage capacity (20 TiBit – 80 TiBit) as a set of ADHA modules. The unit consists of a master module distributing the load between up to 4 extension modules while a single extension module can be also used stand-alone. Within the presentation, DSI will present the current state of the project and provide insights in the foreseen architecture as well as the interface between both types of modules. For missions requiring storage throughput exceeding 40 Gbps the presentation will give a quick glimpse on further activities tackling these highest end missions.
