On 11/07/2009 01:36 PM, Alan Johnson wrote: > As you add systems/data, you loose history, > but you can add storage when you want more history rather than when you > are worried about having enough room for the next backup. > > I have an rsync-based script that I wrote long before I heard about > rsnapshot that first checks to make sure there is enough room on the > store by deleting oldest snapshots first before each iteration of a > server-and-dir loop, but it would be nice if the backup tool could > manage that along the way.
The trick with a typical rsnapshot install is that you're backing up a bunch of network servers and the cost to figure out how big the rsync-differential is is the cost of doing the rsync. My rsnapshot jobs typically take 4 hours to run, so doubling that isn't all that satisfying. Still, a simple job could check the rsnapshot log for 'no space left on device' after the night's run, and prune the oldest snapshot for a hopefully better result on the next run. Imperfect, to be sure, but probably more useful than not doing it. -Bill -- Bill McGonigle, Owner BFC Computing, LLC http://bfccomputing.com/ Telephone: +1.603.448.4440 Email, IM, VOIP: b...@bfccomputing.com VCard: http://bfccomputing.com/vcard/bill.vcf Social networks: bill_mcgonigle/bill.mcgonigle _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
