4K Random Read/Write
Each QD for every parameter tested includes 300 data points (five minutes of one second reports) to illustrate the degree of performance variability. The line for each QD represents the average speed reported during the five-minute interval.
4K random speed measurements are an important metric when comparing drive performance, as the hardest type of file access for any storage solution to master is small-file random. One of the most sought-after performance specifications, 4K random performance is a heavily marketed figure.
The Seagate Enterprise Performance 10K v7 scores very closely to the 10K v6 with an average speed of 410 IOPS at QD256, a minimal loss to the 10K v6, which averaged 414 IOPS.
The 10K v7 averages 365 IOPS at QD256 in our 4K write testing, again within range of the 10K v6 with its average of 368 IOPS.
Our write percentage testing illustrates the varying performance of each solution with mixed workloads. The 100% column to the right is a pure write workload of the 4K file size, and 0% represents a pure 4K read workload.
The Seagate Enterprise Performance 10K v7 scores nearly perfectly in line with its predecessor, and exhibits similar performance consistency.
The Seagate Enterprise Capacity 10K v7 trades blows with the 10K v6, with a slight tendency towards a higher latency range.
We record the power consumption measurements during our test run at QD256.
The Seagate 10K v7 averages 6.88 Watts, an incremental increase of .72 Watts over the 10K v6.
IOPS to Watts measurements are generated from data recorded during our test. The Seagate 10K v7 delivers an average of 52.5 IOPS per Watt for 4K random writes, and 47.6 IOPS per Watt for 4K random read access.
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