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SanDisk X210 256GB Business Class SSD - Exploring Overprovisioning - 8K Random Read/Write

By: Paul Alcorn | Editorials in IT/Datacenter | Posted: Oct 21, 2013 7:01 pm
TweakTown Rating: 93%Manufacturer: SanDisk

8K Random Read/Write




The 8K random precondition phase reaffirms the massive increase in write performance from utilizing extra OP (80% LBA).




8K random read and write speed is a metric that is not tested for consumer use, but for enterprise environments this is an important aspect of performance. Several workloads rely heavily upon 8K performance and we include this as a standard with each evaluation. Many of our Server Emulations below also test 8K performance with various mixed read/write workloads.


The average 8K random read speed of the X210 weighs in at 29,241 IOPS at 100% LBA, and with extra OP (80% LBA) we note an increase to 41,826 IOPS.




The average 8K random write speed of X210 jumps from 2,224 IOPS at QD256 to 9,290 IOPS.




The X210 exhibits the same increase in mixed 8K workloads that we witnessed with a 4K workload. The increased variability is hardly a concern when dealing with such a large increase in performance.






Power consumption for the X210 averages 2.68 Watts with 100% LBA during the measurement window. The X210 actually pulls less power with extra overprovisioning, averaging only 2.54 Watts.




100% LBA averages 829 IOPS per Watt, and experiences an improvement up to 3,675 IOPS per Watt with extra OP.

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