-Can ClearPass Policy Manager work with multiple trusted AD Domains?
Yes
-Can clearpass be part of multiple domains?
Yes
-How much Access Tracker information can be stored?
7 days is recommended. A SIEM should be used for long term storage
-What’s the benefit of high capacity mode in ClearPass and how it works?
HCG is for guest only deployments. The base capacity of each server is doubled.
TIM CAPPALLI
Aruba Security