This test emulates Database and On-Line Transaction Processing (OLTP) workloads. OLTP is in essence the processing of transactions such as credit cards and high frequency trading in the financial sector. Enterprise HDDs are uniquely well suited for the financial sector with their low latency and high random workload performance. Databases are the bread and butter of many enterprise deployments. These are demanding 8K random workloads with a 66% read and 33% write distribution that can bring even the highest performing solutions down to earth.
The HGST Ultrastar 7K4000 flexes its mixed workload muscle and averages 225 IOPS at QD256.
The HGST 7K4000 offers up a wide range of access time, much like the other HDDs, but the latency distribution, while more consistent, falls into the higher ranges.
The HGST 7K4000 averages 9.58 Watts during the test period.
The HGST 7K4000 averages 22.7 IOPS per Watt in our Database/OLTP testing, once again leading the pack by a fair margin.
The Webserver profile is a read-only test with a wide range of file sizes. Web servers are responsible for generating content for users to view over the internet, much like the very page you are reading. The speed of the underlying storage system has a massive impact on the speed and responsiveness of the server that is hosting the website, and thus the end-user experience.
The 7K4000 averages 212 IOPS at QD256.
The HGST 7K4000 again exhibits more consistent performance, albeit at a slightly higher latency range.
The 7K4000 averages 9.69 Watts during the test.
The HGST 7K4000 averages 21.4 IOPS per Watt during the measurement window, easily beating the competition.
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