On 2011-02-26 03:17, Charles Curley wrote:
What would *really* save space is for Amanda to detect that machines A, B and C all have the save version of file foo (even if they are in different places), and only actually keep one around. I suspect that would be very compute intensive at backup time, but these days....
That is what BackupPC does... At the expense of having the backup in a filesystem currently... And even that can be eliminated by having only meta data and checksums (sha-md5.. whatever) online on disk. (and then again at the expense of a much more complicated backend, where it would be much more complicated to restore backups when your backup server has crashed etc.) -- Paul Bijnens, Xplanation Tel +32 16 397.525 Interleuvenlaan 86, B-3001 Leuven, BELGIUM Fax +32 16 397.552 *********************************************************************** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, ^^, * * quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, ~., * * stop, end, ^]c, +++ ATH, disconnect, halt, abort, hangup, KJOB, * * ^X^X, :D::D, kill -9 1, kill -1 $$, shutdown, init 0, Alt-F4, * * Alt-f-e, Ctrl-Alt-Del, Alt-SysRq-reisub, Stop-A, AltGr-NumLock, ... * * ... "Are you sure?" ... YES ... Phew ... I'm out * ***********************************************************************
