I would like to measure the number of disk seeks that are made by a process under Windows. If I open Task Manager, I can see a column named "I/O - reads". Is this the equivalent of disk seeks? Can I conclude that if a process is making 120 disk seeks on a 7200 RPM harddisk, then it is utilizing 100% of capacity?

This is relevant for ServerFault, because it enables me to estimate how heavy my application will be on a file server once it is in the production environment.