In my Win2k8 AD server the default group policy maps a drive letter to a geographically distant site connected via VPN.
Normally typing in the network path in the Explorer address takes at least 10 secs to load, but access via the drive mapping e.g. T:\ is almost instant.
I can only guess that the server is caching the files (something like 500GB worth of data)
Is this the case? If so, where can I configure or check the cache settings?