Performance in Intel IOMeter: Sequential Read and Write Patterns

The low-level IOMeter test helps explore the speed characteristics of a hard disk drive as it is doing sequential reading and writing. The test utility is sending a stream of read/write requests with a request queue depth of 4. The size of the requested data block is changed each minute, so we will see the dependence of the linear read/write speed of the drive on the size of the data block.

So, the first diagram shows the linear read speed of the hard drives. As you see, the Fujitsu cannot compete in this parameter with the Seagate ST9160821A, which features the perpendicular recording technology. But while it cannot challenge the leader, it leaves the rest of the opponents behind when processing large data blocks. On data blocks smaller than 8KB the Fujitsu MHV2120BH looks poor, though.

The linear write diagram doesn’t differ much from the previous one. The Fujitsu MHV2120BH is good at processing large data blocks, being second only to the Seagate ST9160821A, but it is again slow when working with small data blocks.