This presentation describes a cloud infrastructure for high-load applications and provides 12 diagrams with RAID and DB performance test results on Microsoft Azure: • 4 diagrams with write results for RAID arrays (0–6) using 4 drives and 1 thread • 1 diagram comparing write results for RAID 0 on 2, 4, and 8 drives • 3 diagrams with read results for RAID 1 and 0 using 4 and 8 drives to process 16 threads • 4 diagrams with results for a Cassandra cluster of 2 large nodes under different workloads More on the topic: http://blog.altoros.com/raid-arrays-on-windows-azure.html