Here is our MySQL settings :
3 MySQL servers in a "replication-ring" : they're all Master and S1 is slave to S2, which is slave to S3 which is slave to S4.
Up until now we would do snapshots of the machines, but that's not something we can/want to do anymore. We're trying t get a full-proof backup of the databases to S3.
My idea was that we need to make
mysqldump every few hours and then upload that to S3. The problem with that is that a dump is pretty expensive when you have a more than a few hundred MBs of data (we're at 8GB).
Saving the binary logs is an option, but then the restore may take days, as we need to apply all the binary logs :/
Any awesome solution for us?