On Wed, Jun 04, 2003 at 11:35:27AM -0400, Milos Brkic wrote:
  

 Some time ago I have tried to configure something similar with the 
rait driver. I wanted to have backups going to an online disk, for 
onsite fast recovery, and to tape for off-site and longer term historic 
storage. I could not get the rait to do it properly to tape and disk, so 
I ended up with the following config, that I thought some people might 
find useful.

Basically I do all the backups to an online disk with the "file:" 
driver, and "chg-multi" changer, as described in the amanda faq. I have 
7 virtual tapes configured, and the backups cycle through these daily. 
Combined with dumpcycle of one week, this gives me a complete set of 
online backups for all disks, and clients at all time.

Then I have a separate amanda config that backs up only the 7 virtual 
tapes nightly, except that the script that is cronned for this config 
selects only the latest "tapes" that have not been backed up yet, and 
dumps only these to tape. It does this by finding any of the "tapes" 
that have changed since last backup was done, as determined by the dates 
of the appropriate files in the curinfo directory.

This is definitely not the most elegant solution, but it works, and it 
does what I need it to do.
    

Interesting idea.  ISTR it being considered in another thread, but no
one had implemented to my knowledge.

Have you attempted recovery from your taped versions of the backups?
Is that a two-step procedure than, first recover the online backup
version from tape, then restore from the recovered online backups?