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Drobo 5C Five-Bay USB-C DAS Review

By Tyler Bernath from Mar 7, 2017 @ 23:55 CST
TweakTown Rating: 90%Manufacturer: Drobo





Workloads show the large performance gap between using SSDs over HDDs when not dealing with large sequential workloads. The Phison SSDs in single and dual redundancy brought in 650 IOPS and 690

IOPS respectively, while the HDDs peaked at 140 IOPS for single redundancy and 100 IOPS for dual redundancy.




File server was similar with peak performance coming in at 734 IOPS.





Email Server was next up, and the HDDs managed a peak of 150 IOPs, the SSDs 630 IOPs.




Web Server has the HDDs topping out at 115 IOPS single redundancy and the SSDs 778 IOPS.




Workstation showed the HDDs still hovering around 100 IOPs for both single and dual drive redundancy while the SSDs were slightly slower at 400 IOPS.



Workload Response




Latency is another big area you will see improvement with SSDs. In our Database workload, we have a 730ms difference at QD128 between SSD and HDD in single redundancy response, while dual redundancy increases that to 930ms.




File Server gives the HDDs 972ms and 1138ms at QD128 while the SSD sit nicely at 175ms single and 186ms dual.




Email Server had a difference of 615ms between drives in single redundancy mode and dual came in at 862ms difference.




Web Server response topped started at 9ms for the HDDs and 1ms for the SSDs while at peak we had 1178ms for the HDDs and 164ms for the SSDs.




Workstation had the same 9ms starting point and topped out at 1332ms for the HDDs while SSDs started at 2.5ms and ended at 328ms.

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