SharePoint V3: Disk Cache

One performance configuration available in MOSS 2007 is BlobCache. Consider caching files on the front end web servers to improve performance. Open the web.config for the web application and review the BlobCache settings.

BlobCache location="C:\blobCache" ...

References:

Configure disk-based cache settings
http://office.microsoft.com/en-us/sharepointserver/HA101762841033.aspx

Custom Caching Overview
http://msdn.microsoft.com/en-us/library/aa589700.aspx