Adding a second hard drive for squid

[guaripolo]

Hi, i'm trying to add a second hard drive for my pfsense box, searching in the net i've found some tutorials and similar topics, like this one:

http://es.scribd.com/doc/75864246/Speed-Up-Internet-PFSense-Adding-Second-Harddirve-for-Cache-Directory
http://forum.pfsense.org/index.php/topic,44493.0.html
http://www.freebsd.org/doc/en/articles/formatting-media/article.html

i have some specific questions:

1. can i format my second hard drive with pfsense from ssh console?
2. when i run fdisk it throws an "class not found" error. Whan can it be?
3. when i use gpart, it seems that it's not writing any changes to the drive…it's because i'm doing it from ssh?

thanks in advance.

[RUALBERT]

is it possible….any help.