I will try to comment on the first part at a later time.

>        What, exactly, do you mean by "swap out drives"?  There will never
> be more than one backup hard drive online at any given time.  When you say
> "swap out a drive", do you mean, "take one offline and bring another
> online", or do you mean, "erase the contents of a drive to free it up for
> use by newer backup sets"?  This system is primarily a video server, so the
> latter will rarely, if ever, happen except when starting fresh with a brand
> new full backup.  Out of 8T (eventually probably over 30T), only a few
> megabytes worth of files will ever undergo modification, so the incremental
> data will take a very, very long time to overflow even a 1T drive.
>

I mean when a hard drive (which contains 1 or more bacula volumes)
fills up with backup data you will need to install a different hard
drive to continue your backup.

John

------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay 
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users