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Micron P400m 200GB Enterprise SSD Review - OLTP and Webserver

By: Paul Alcorn | SSDs in IT/Datacenter | Posted: Feb 13, 2013 10:54 am
TweakTown Rating: 91%Manufacturer: Micron







This test emulates Database and On-Line Transaction Processing (OLTP) workloads. OLTP is in essence the processing of transactions such as credit cards and high frequency trading in the financial sector. Enterprise SSDs are uniquely well suited for the financial sector with their low latency and high random workload performance. Databases are the bread and butter of many enterprise deployments. These are demanding 8K random workloads with a 66% read and 33% write distribution that can bring even the highest performing solutions down to earth.


The P400m chugs away with very little variability in this mixed workload, and the Intel also retains its clustered performance. The Optimus does begin to show signs of increased variability under this type of workload. The P400m averages 20,413 IOPS at QD256, the DC S3700 averages 33,546 IOPS, and the Optimus averages 36,837 IOPS.




The P400m provides 26% (1,641,970) of requests within the 6-8ms range, 14% (905,642 I/Os) in the 8-10ms range, and 50% (3,065,305 I/Os) in the 10-20ms range.




The P400m averages 2.75 Watts, the Intel averages 3.56 Watts and the Optimus averages 6.5 Watts. This gives the Micron P400m 7,422 IOPS per Watt, the Intel 9,418 IOPS per Watt, and the Optimus 5,659 IOPS per Watt.









The Webserver profile is a read-only test with a wide range of file sizes. Web servers are responsible for generating content for users to view over the internet, much like the very page you are reading. The speed of the underlying storage system has a massive impact on the speed and responsiveness of the server that is hosting the websites, and thus the end user experience.


The P400m averages 21,533 IOPS at QD256, the Intel averages 33,546 IOPS, and the Optimus averages 36,837 IOPS. All SSDs exhibit some variance, but taking into consideration the scale of the graph it is minimal. The P400m pulls up nearly even with the Intel, which apparently abandons its garbage collection cadence during this test. The Optimus again pulls ahead in overall speed.




The Micron P400m delivers 78% of I/O in the 10-20ms range, and 19% in the 8-10ms range.




The Micron P400m averages 2.59 Watts, the Intel averages 2.24 Watts, and the Optimus averages 5.61 Watts. This gives the P400m 8,304 IOPS per Watt, the Intel an average of 10,600 IOPS per Watt, and the Optimus 5,071 IOPS per Watt.

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