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Seagate Desktop SSHD 4TB ST4000DX001 Consumer HDD Review

By: Tyler Bernath | SSHDs in Storage | Posted: Apr 29, 2015 8:10 pm
TweakTown Rating: 87%Manufacturer: Seagate

IOMeter - 4K Random Performance with QD




Starting off with 4K random read, we found the 4TB SSHD scaling quite well with a peak of 363 IOPS at QD32.




Write throughput showed of the caching of the drive. As you can see, both the 2TB and 4TB capacities started off testing with a burst of performance, then settled down and scaled linearly through QD32.




Read latency for the 4TB SSHD was really similar to the standard HDD and lower than the 2TB SSHD variant.




Random write latency showed each of the three drives scaling quite well. The 4TB SSHD seems to distance itself around QD8 and continues the trend through QD32.

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