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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.

After the Database tests it is quite easy to predict the winner of this pattern which consists of read requests only. The second-generation X25-M enjoys a huge advantage over its opponents. Moreover, it differs from its predecessor in not having a performance hit at long queue depths (all thanks to the new firmware!). It is simple with the other drives: the Vertex Turbo has somewhat better results than the other Indilinx-based models while the Agility is the slowest among them. The OCZ Summit is the worst drive in this test.

The standings change when there appear write requests, but the leader remains the same. Intel’s new generation of solid state drives is a perfect choice for servers! The best of the opponents, the OCZ Mac Edition, can only rival Intel’s first-generation products. The other Indilinx-based models have lower performance, and the Summit is downright poor at writing. On the other hand, single hard disk drives rarely score over 100 points in this test while the Summit scores 493. A RAID array built out of eight SAS disks could deliver over 1000 points, but the X25-M G2 has over 12 thousand points!

It’s like in the previous test: the new Intel is unrivalled and, unlike its predecessor, has no performance slumps. The OCZ Vertex Mac Edition stands out among Intel’s opponents. Two things must be noted here. First, the Vertex Turbo is the worst drive with Indilinx controller (probably because it has the oldest firmware). And second, the Summit behaves most characteristically. Its performance does not grow up along with the request queue as that of Intel’s SSDs and does not remain on the same level as that of the Indilinx-based models, but declines.

When the test zone is limited to 32 gigabytes, the SSDs all slow down somewhat but their standings remain the same.

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