On Thu, 5 Dec 2013 11:30:23 -0600 David Nelson <[email protected]> wrote: > Hello, > > I built a BackupPC server with good older hardware and installed two > WD RED 3 TB drives and used LVM to make them one big ~6 TB volume > for backupPC. The system boots from a separate disk BTW. I am backing > up teacher and student files for a small school district. The total > backup before pooling and compression is around 800GB. My pool size > is around 1TB with a months worth of daily incremental and full > backups on Fridays. I did not realize when I built the server how > amazingly efficiently BackupPC stores the backups. I did not > anticipate being able to keep so many backups! > > Is there any reason not to just increase the full and incremental keep > count to a something like the whole school year? Another though is to > keep the fulls and incremental for maybe 3 months then let the > incremental go and just keep the weekly fulls? So that's the > question, if I have plenty of space is there any reason not to just > keep a ton of backups?
There are examples in the docs to set the fullKeepCnt to value [4, 0, 4] for example, meaning keep 4 full at FullPeriod-interval (defaults to 6.5 days), 0 backups at twice the FullPeriod and 4 backups before that in four times the FullPeriod (which becomes roughly a month). For a customer we use that to save weekly for two months and then ~monthly for one (or two) years. Works like charm. - Arnold
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