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Western Digital Caviar SE 2500JS HDD - SATA vs. SATA-II

By: Cameron Johnson | HDDs in Storage | Posted: Oct 3, 2005 4:00 am
TweakTown Rating: 8.0%Manufacturer: Western Digital

Final Thoughts

 

Serial ATA has taken off as the standard for mass storage; it's only a matter of time before ATAPI devices will start showing up on SATA, allowing a much broader range of transfer rates for DVD-R units.

 

Serial ATA has had some teething issues, such as getting wide range support, as well as adding features that would distinguish it from Parallel ATA architecture but Serial ATA-II has finally done this.

 

Serial ATA-II adds speeds of 300MB/s between the host to drive buffer as well as full support for hot plug, which allows for using HDD's as swappable media - no need for rebooting, much like USB.

 

In our testing, Serial ATA-II running at full speed doesn't offer any great speed advantage over the SATA-150 drives, so until the magnetic storage components are replaced with high speed non-violate memory, we won't see much in terms of speed upgrades with SATA-II at its current form.

 

Overall the speed of the Western Digital drive isn't impressive as a single drive not in RAID, but the additional features make SATA all the more enticing as the new storage interconnect standard and in a RAID 0 array we've seen SATA-II drives really shine. Western Digital's implementation of SATA-II is good and drive is built to typical high-quality WD standards however unfortunately our performance benchmarks were not as impressive as we imagined they would be.

 

- Pros

 

SATA-II support

 

Molex power connection option

 

Quiet operation

 

Very well priced (around 44 cents USD per GB at time of publishing)

 

Good performance but not spectacular

 

- Cons

 

No real advantage over SATA as a single drive

 

- Current Pricing

 

Western Digital Caviar SE WD2500JS

 

The Western Digital 2500JS HDD is for people building a new system with SATA-II support and want a very affordable yet decent drive with plenty of space and is not for people thinking of upgrading from a single SATA to SATA-II drive expecting to see massive jumps in performance.

 

Rating - 8 out of 10

 

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