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Web-Server, File-Server and Workstation Patterns

The drives are tested under loads typical of servers and workstations.

The names of the patterns are self-explanatory. The Workstation pattern is used with the full capacity of the drive as well as with a 32GB partition. The request queue is limited to 32 requests in the Workstation pattern.

The results are presented as performance ratings. For the File-Server and Web-Server patterns the performance rating is the average speed of the drive under every load. For the Workstation pattern we use the following formula:

Rating (Workstation) = Total I/O (queue=1)/1 + Total I/O (queue=2)/2 + Total I/O (queue=4)/4 + Total I/O (queue=8)/8 + Total I/O (queue=16)/16.

We guess these four diagrams make it clear that the JMicron-based SSDs can only be recommended for read operations and only if they are considerably cheaper than SSDs based on other controllers. They almost come to a halt as soon as there are write requests to be processed. Even the Transcend, for all its SLC memory, is no better than today’s HDDs. You can easily find this out by comparing its performance ratings with those of the 2TB HDDs. The JMicron-based SSDs are absolutely unsuitable for a top-performance workstation due to extremely low performance.

The Corsair X128 is always second to the Intel X25-M and ahead of the other model from Corsair.

 
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