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Web-Server, File-Server Patterns

The drives are tested under loads typical of servers. The names of the patterns are self-explanatory. The results are presented as performance ratings which are calculated as the average speed of the drive at every load.

This pattern includes read requests only, and the Seagate 7200.4 beats the 500GB WD BEVT, which has a lower spindle rotation speed, to get first place. The newer products with larger capacities are in the middle of the table and do not differ from their predecessors.

Interestingly, the HDDs produce graphs that go above or below each other but have the same shape. This is the consequence of today’s HDDs still behaving in the same way under simple loads. The Seagate 5400 is the only model that tries to stand out among the others but its performance at high queue depths is lower than that of its opponents.

This pattern contains some write requests, so the Seagate 7200.4 and both drives from Samsung suffer from being slow at high request queue depths. The two WD BPVT drives and the Hitachi 5K500.B have a dislike towards writing, judging by their poor results at short request queue depths. Thus, this test is won by the not-very-new WD BEVT with a capacity of 500 gigabytes.

 
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