Conclusion

As we have already mentioned in the beginning of this review, Western Digital engineers primarily aimed at increasing the reliable functioning time of their RAID Edition drives under heavy and intensive workload. Unfortunately, we cannot yet state if they managed to accomplish this task 100%, because we couldn’t carry out such a long-term testing session this time, so that we could make any serious conclusions about their reliability.

The only thing we can state with all certainty is that during this one-week test session none of the WD2500SD drives failed. And so did none of the WD2500PD drives, too :)

However, we managed to study carefully the features of the new WD2500SD responsible for its high efficiency and fast performance in single-drive mode as well as in a RAID 0 array. So, we have every right to say that WD did a great job in creating a successful product with principally new product features.

Despite the fact that WD2500SD lost in a few synthetic IOMeter tests, it managed to show its best in less synthetic programs such as WinBench99 and FC-Test. These results seem very optimistic and allow us to say that potential buyers of this product will get what they are looking for. All this together with higher claimed reliability makes this drive a really worthy choice.