Re: Tarsnap de-dup - one machine or all?

2020-09-18 Thread Graham Percival
Hi Arthur, Deduplication is tied to each machine key. If you have multiple machines using the same key, then data will be deduplicated between all those systems [1]. If you have multiple machine keys, then there will be no deduplication between them. [1] If you are sharing a machine key, then

Re: Tarsnap de-dup - one machine or all?

2020-09-17 Thread J. Hellenthal via tarsnap-users
If you are using the same key from the previous machine then they may be de-duped as the commmand you are running has access to the previous archives. Each key is unique in a way that it should never have access to another machines data. Make sense ? On Thu, Sep 17, 2020 at 08:50:13AM

Tarsnap de-dup - one machine or all?

2020-09-17 Thread Arthur Chance
Does tarsnap's de-dup work on one machine at a time or across all machines in an account? The reason I ask is because I've moved a largish mail archive from one machine to another and am unsure whether the backup on the new machine will reuse the blocks from the old one, or whether I'll end up