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Micron RealSSD P400E Five Drive JBOD Enterprise Report (Page 8)

By Paul Alcorn | Aug 15, 2012 10:31 am CDT
Manufacturer: Micron

Server Emulations

We use several industry standard Iometer profiles, configured to emulate the data access patterns utilized by a number of different types of servers.

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


The JBOD delivers 10,947 in steady state and 12,079 with overprovisioning with OLTP usage. This clearly is not an intended usage for the SSDs with the high write workloads.


This test emulates a typical Email Server with a 50% Read and 50% write distribution of 8K random files. These types of servers aren't typical applications that many would expect solid state storage to be integrated into. With the lowering price points of high endurance SSDs, acceleration for these types of servers is becoming a reality. An added bonus is that an enhanced amount of IOPS capability equates to a higher average CPU utilization of the server, maximizing the efficiency and TCO/ROI of the overall system.

The JBOD gives 8,335 IOPS in steady state and 8,995 with overprovisioning.


The File Server profile represents typical workloads encountered in file servers. The inherently random nature of data access in file servers can gain considerable boosts in performance from SSDs and benefit greatly from caching and tiering solutions. This profile tests across a wide variety of different file sizes simultaneously, with an 80% read and 20% write distribution.

The JBOD scores 16,993 with steady state and 17,837 with overprovisioning. This higher distribution of read activity in the workload highlights the strengths of the P400E.


The Web server 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 P400E is geared for this type of workload, providing a monstrous 51,423 IOPS in steady state. Utilization as a caching volume for a webserver would be a particularly good application of this SSD.


The Workstation profile emulates the usage patterns of a storage system on a typical user's workstation. This would be the closest to an actual operating system pattern that a user would experience on their desktop. This test is comprised of 8K random access with an 80% read and 20% write distribution.

The P400E JBOD scores 16,481 IOPS in steady state and 17,578 IOPS with extra overprovisioning.

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