ATTO is another "quick and dirty" type of disk benchmark that measures transfer speeds across a specific volume length. It measures raw transfer rates for both reads and writes and graphs them out in an easily interpreted chart. We chose .5kb through 8192kb transfer sizes and a queue depth of 6 over a total max volume length of 256MB. ATTO's workloads are sequential in nature and measure bandwidth, rather than I/O response time, access latency, etc. This test was performed on blank, formatted drives with default NTFS partitions in Windows 7 x64.
|ATTO Disk Benchmark
|More Information Here: http://bit.ly/btuV6w
It appears we have the makings of a trend here; the WD RE posted strong overall read scores in ATTO, taking a backseat to the Seagate Barracuda 3TB by a slim margin and the 1TB VelociRaptor drive by a relatively wide one.
In the write test, however, the WD RE delivered a strong second-place performance--even better than the big VelociRaptor in smaller transfer sizes--as the Seagate Barracuda 3TB faltered.