Thanks FAN
I was not able to get system to boot with a volume larger the 2TB. I rebuild the raid 10 volume on the Adaptec 6805 and changed the size to 2TB and the Proxmox 1.8 build 6070-5 installed and utilized the 2TB volume without any trouble.
Thanks again
Tried to do a bare metal install on system with adaptec 6805. The system did not boot. Got the message "Unable to create data volume at /usr/bin/proxinstall line 570". I read on the forum what others did to get their 6805 working. I confirmed with Adaptec support that the drivers in the kernel...