I am interested quite a lot in making backups on two different media, like what 
you said disk and tape. In my case I would like to write my data on disk and 
disk, but with 800km between the 2 disk shelves.
I don't think RAIT can handle this.

And if there's no existing solution, I don't mind developing it from scratch. 
Is someone interested in coding it with me?



On Wed, 22 Oct 2003 15:55:58 -0500
Frank Smith <fsmith AT hoovers DOT com> wrote:

> Since the list has been pretty quiet lately:
> 
> Is there a (relatively) easy way of backing up to both disk and
> tape from a single config?  I was thinking of using the file driver
> to do backups to disk (for faster recoveries) while also using
> tapes (for archiving and offsite purposes).
> 
> Options I've considered:
> 
> Just using the file driver and then dd'ing those to tape later.
> But since I couldn't keep as many file 'tapes' around as I would
> keep tapes, how would I handle recoveries of older data?  Just
> delete the file 'tapes' as needed, and to do a restore, first
> dd the tape back to the properly named file?
> 
> Using the RAIT driver (does it still exist?) to mirror a backup
> between disk and file?  How would a restore work in this case;
> would Amanda expect both tape and file to be present?  Could
> a changer script handle the two diferent mediums?
> 
> Two configs.  It would double the backup window and I"m soaking
> some WAN links too long already. 
> 
> Something else?
> 
> My idea is to somehow use the file driver to keep a couple of
> dumpcycle's worth of backups on disk, but to also have a
> tapecycle's worth of tapes (which is many times dumpcycle).
> Anybody tried anything similar?
> 
> Frank
> 
> -- 
> Frank Smith                                      fsmith AT hoovers DOT com
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