Average Response Time

The average response time is the average amount of time a storage device takes to receive a data request, find the corresponding data, access it, and return the requested results. It depends on various factors, including network bandwidth, the number and type of data requests, the type and technical characteristics of the storage hardware, and the number of users performing these data requests. The results below assume the NAS is accessed by a single user only. Check the "Performance Summary with Multiple Clients" page for multi-client response time results.





The difference in response time is not large compared to the competition. That having been said, the DS220j does finish last in two tests.

Throughput

The following graph shows the overall throughput of the NAS in all tests I conducted using the DiskSpd tool in an OLAP scenario with QD4.



Some comparison graphs follow.



The differences here are small because the full bandwidth of the Gigabit Ethernet connection is utilized with the SSDs I use, as well as the type of transfers DiskSpd performs.

IOPS

The next graph shows the recorded IOPS in all tests I conducted using the DiskSpd tool in an OLTP scenario with QD4.



The necessary comparison graphs follow.



The DS220j places second to last in terms of performance, behind the F5-422, which scores very poorly.