Toshiba OCZ RD400 Series High-Performance NVMe SSD Review
SANDRA and ATTO Disk Benchmark
Next we ran SiSoft SANDRA 2014, the the System ANalyzer, Diagnostic and Reporting Assistant. Here, we used the File System test suite and provide the results from our comparison SSDs. The benchmarks were run on fully formatted drives, with software RAID 0 configured on the DC P3608. Read and write performance metrics are detailed below.
As was the case in IOMeter, the Toshbia OCZ RD400 series drives trailed the Intel SSD 750 and Samsung SSD 950 Pro here, in terms of read speeds. Writes were more in-line, however. Either way, the deltas weren't very big.
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 64MB 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 raw bandwidth, rather than I/O response time, access latency, etc.
Save for a couple of dips in performance at a couple of transfer sizes, the Toshiba OCZ RD400 rocked the ATTO Disk Benchmark. Both drives topped 2.6GB/s in reads with >1.6GB/s writes (at the larger transfer sizes).