Disk spanning

[Dogwelder]

My fileserver (Win2k) was running out of space, so when I bought an additional 120Gb drive, I decided to span with the previous drive for ease of use using the built Disk management snap in. I'm not sure, but file transfer speeds to and from that drive seem a little slower. Is that common with this? Also, does anybody know of an utility that benchmarks how fast data can be written/read to the drive?

Dogwelder