I am struggling to find a method of keeping consistent off-site without 
breaking easy restores.

My planned schedule was as follows:

First Sunday of Month: Full Backup to Disk
Monday-Saturday: Incremental Backup to Disk
      Friday (after the incremental):  Virtual Full Backup to Tape
Subsequent Sundays in Month:  Differential Backup to Disk

Keeping 3 months (or more depending on rate of change and how well 
compression works, which are currently unknowns) on disk for restores, 
and the Friday virtual full going off-Site in case of disaster.

The problem I ran into (well not actually still in testing, and not 
production), is on the Second Friday of the month, the virtual full 
fails, because it can't find the previous virtual full to build the new 
one from.  How do I make it go back to the actual full instead of the 
previous Virtual Full?

Will I be stuck creating a virtual full to another disk pool, then 
running a copy job for off-site backups, which unfortunately greatly 
reduces the history of on disk data I can keep for restores.

Or is there some method I have yet to discover that will allow me to 
mark the tape volume unavailable so that it ignores that job on the 
subsequent virtual fulls.  I have tried playing with setting the enabled 
status to disabled, and updating the volstatus parameter, without 
getting anywhere.

-- 
Thanks,
    Dean E. Weimer
    http://www.dweimer.net/

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