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Adaptec by PMC ASR-8885 12Gb/s RAID Controller Review - RAID 0 8K Random Read/Write

By: Paul Alcorn | RAID/HBA in IT/Datacenter | Posted: Nov 18, 2013 2:00 pm
TweakTown Rating: 92%Manufacturer: Adaptec by PMC

RAID 0 8K Random Read/Write




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. With several different workloads relying heavily upon 8K performance, we include this as a standard with each evaluation. Many of our Server Emulations below will also test 8K performance with various mixed read/write workloads.


The average 8K random read speed of the HGST array comes in at 524,990 IOPS at QD256, and the Micron drive array peaks at QD256 with 482,335 IOPS.




The 8K read latency results indicates that the best performance in latency-sensitive applications for the HGST array falls at QD128, and the Micron array again performs best at QD256.




The average 8K random write speed of the HGST array is 350,637 IOPS at QD256, and 307,299 IOPS for the Micron array.




With 8K random writes, the Microns average .84ms and the HGST array averages .729ms.

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