Intel IOMeter: FileServer & WebServer

The last pattern we are going to take a look at imitate the work of the disk subsystem in a file- or web-server.

Again we will use the performance rating to compare the results shown by different types of RAID arrays. However, for server patterns we will simply average the Total I/O values obtained for all types of workload (considering all workloads to be equally probable).

Of course, the mirroring arrays, RAID 1 and RAID 01, feel at home under this workload. Just look at the RAID 01 array! It simply ripped into pieces the RAID 0 of three HDDs! RAID 0 of four drives managed to retain the leading positions only because FileServer pattern has some write requests, which RAID 0 array performs much faster than RAID 01. RAID 1 laid itself out but finally managed to outperform RAID 0 of two drives.