Hi there, On Tue, 1 Dec 2020, backuppc-users-requ...@lists.sourceforge.net wrote:
How big can backuppc reasonably scale?
You can scale it yourself as has already been suggested, but I don't think you'd have any problems with a single backup server and the data volumes you've described if you were sensible about the configuration, which is very flexible. However...
... daily backup volume is running around 750 GB per day, with two database servers providing the majority of that volume (400 GB/day from one and 150 GB/day from the other).
That's the part which bothers me. I'm not sure that BackupPC's ways of checking for changed files marry well with database files. In a typical relational database server you'll have some *big* files which are modified by more or less random accesses. They will *always* be changed from the last backup. The backup of virtual machines is not dissimilar at the level of the partition image. You need to stop the machine to get a consistent backup, or use something like a snapshot. Normally I do some sort of separate database dump for database files, and run that system separately from run-of-the-mill Linux/Windows box server/workstation backups. After all, I usually just want a single good backup of any database. Having several copies, aged at one day, one week, two weeks, a month etc. would usually be of no use to me.
... I have no idea what to expect the backup server to need in the way of processing power.
Modest. I've backed up dozens of Windows workstations and five or six servers with just a 1.4GHz Celeron which was kicking around after it was retired from the sales office. The biggest CPU hog is likely to be data compression, which you can tune. Walking directory trees can cause rsync to use quite a lot of memory. You might want to look at something like Icinga/Nagios to keep an eye on things. -- 73, Ged. _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: https://github.com/backuppc/backuppc/wiki Project: https://backuppc.github.io/backuppc/
