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Toshiba PX03SN 12Gb/s SAS3 Enterprise SSD Review

By: Paul Alcorn | SSDs in IT/Datacenter | Posted: May 21, 2014 2:00 pm
TweakTown Rating: 91%Manufacturer: Toshiba

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 workloads also test 8k performance with various mixed read/write workloads.

 

The average 8k random read speed of the Toshiba PX03SN averages 99,802 IOPS; the PX02SS measures an outstanding 100,277 IOPS at 256 OIO, while the Toshiba PX02SM takes the low road with 88,549 IOPS. Once again, we note improved performance with the 19nm MLC NAND.

 

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All three SSDs exhibit a tight latency range during the 8k random read test.

 

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The PX03SN averages 14,968 IOPS, and the PX02SS averages 29,714 IOPS at 256 OIO. The PX02SM averages 16,391 IOPS at 256 OIO.

 

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The PX03SN and the PX02SM experience performance variability at 256 OIO.

 

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The PX03SN bests the eMLC PX02SM with read activity, but matches it as we add in more write activity.

 

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Power consumption for the PX03SN averages 5.55 watts during the measurement window, lower than the high endurance models.

 

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The PX03SN trails during the efficiency test with an average of 2,660 IOPS-per-Watt. The MLC doesn't seem to be nearly as efficient during heavy write workloads.

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