Intel IOMeter: DataBase

Database pattern is the next test for WD2500JB.

Unlike WD2000JB, WD2500JB doesn’t flunk the RandomRead mode! This suggests that WD2500JB owes its improved average access time not only to more servomarks per track, but also to firmware enhancements.

Good performance of WD2500JB in the RandomRead mode may result in high performance in the WebServer pattern as it also has no write requests.

Note also the results demonstrated by Maxtor HDD. Our “special” preliminary preparations led to the following picture: the drive shows the same performance on different UDMA controllers in those tests which do not care about the amount of data sent through the interface.

Under higher workload both WD drives behave practically identically, although WD2500JB leaves its counterpart behind when the write requests share is high.

It is very interesting that the drive from Maxtor produces slightly different results on different UDMA controllers.

The workload gets a little higher again, and we see the same effect as under linear workload: WD2000JB doesn’t like the RandomRead mode, while WD2500JB copes with it all right.