Successfully & very smoothly upgraded ZCS 6.0.8 to 7.0.1

Platform: Ubuntu 8.04 64 Bit
No. of Mail Boxes: 91
Mail Box Store: Ranging from 2 GB to 12 GB
Total Mail Store: 180 GB
Integrity Check took time: 3-4 minutes
Upgrade took time: less then 30 minutes
MySQL Database Upgrade took time: 2-3 minutes

Dipesh