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HGST Ultrastar SSD800MH 12Gb/s SAS3 Enterprise SSD Review

By: Paul Alcorn | SSDs in IT/Datacenter | Posted: Apr 15, 2014 6:05 am
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TweakTown Rating: 95%Manufacturer: HGST

8k Random Read/Write

 

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Server workloads rely heavily upon 8k performance, and we include this as a standard with each evaluation. Many of our server emulations also test 8k performance with various mixed read/write workloads.

 

The average 8k random read speed of the HGST Ultrastar SSD800MH is 91,661 IOPS at 256 OIO; the Toshiba PX02SS measures an outstanding 100,277 IOPS at 256 OIO to take the lead, while the SSD800MM offers up 91,622 IOPS.

 

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All three SSDs exhibit a tight latency range during the 8k random read test, but the Toshiba PX02SS provides the lowest latency.

 

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The SSD800MH easily leads with an average of 52,180 IOPS; the PX02SS experiences significant variability while managing an average of 29,714 IOPS; and the SSD800MM sports a consistent average of 32,878 IOPS at 256 OIO.

 

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The Toshiba SSD experiences significant latency variability.

 

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The PX02SS also has an affinity for 8k workloads, but the SSD800MH also excels at this workload. The PX02SS wins with lighter write workloads, from 0-30 percent, but falls to the incredible consistency of the SSD800MH from 40-100 percent as the write workload intensifies.

 

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Power consumption for the SSD800MH averages 8.48 watts, the PX02SS averages 5.84 watts during the measurement window, and the SSD800MM requires 7.60 watts.

 

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The SSD800MH leads this chart with 6,036 IOPS-per-Watt; the PX02SS's variability shows up in the efficiency results, but it still averages 5,103 IOPS-per-Watt, and the SSD800MM measures 4,159 IOPS-per-Watt.

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