[rdiff-backup-users] Failover to warm standby and restore

[Steve . Dutky]

Dear all,

A friend recommended that I use rdiff-backup to maintain a back up of an 
inconveniently large, reasonably slowly changing file repository.

I would like to keep the back up copy on a warm standby system, so that if the 
primary host fails, I can reconfigure the standby to replace it.

I understand that modifying the back up files will invalidate the rdiff 
snapshots.

Is there a sane way of keeping the snapshots valid that does not involve 
maintaining a second back-up copy?

When the primary host comes back up, are there any extraordinary considerations 
for updating its repository ?

Thanks, Steve