Re: [rdiff-backup-users] Tar replacement - format proposal

[Greg Freemyer]

On Fri, 2003-09-26 at 07:10, David Kempe wrote:
> ----- Original Message ----- 
> From: "Kevin Spicer" <address@hidden>
> 
> >
> > Interesting ideas.  You seem very focused on backup to disk, have you
> > considered what happens if someone wants to backup to tape.  Since the
> > index is at the end of the file they would need to read the entire file
> > to get the index, then rewind and read (possibily) the entire file again
> > to extract what they want.
> 
> I don't think duplicity is meant for tape - indeed my rdiff-backup main
> usage now is to firewire drives.
> Then I use it for SSH sessions.
> Tape is dead for me. if people want to use tape then there is heaps of
> options.
> I don't think this new file format should be the greatest and solve all
> possible problems, just focus on solving the problems inherent to duplicity
> 
> dave
> 

Tape is definately not dead.

As a simple example HIPAA requires all logs be maintained for 7 years I
think it is.

That sort of archival storage is definately best done on tape.

I know my company stores 30 days of backups on ATA disks, but then
archival backups are made to tape.

I beleive that is the way most companies will be doing backups in the
future.

The problem I have with todays backup software is that it targets only
one of the above, not both.

The best solution is a backup package that "stages" backups on disk for
30 days, but then transfers archival versions of the backups to tape for
long term storage.

If the new format can be done in such away as to make this staging
capability easier, then I would like to see it.

Greg
-- 
Greg Freemyer