continuous backup solution for FreeBSD

[Dag-Erling Smørgrav]

Evren Yurtesen <yurtesen at ispro.net> writes:
> Wouldnt that device need to keep the whole filesystem? Like if you
> have 10 machines with 10x 1GB drives (lets say each used about 250gb),
> you will need 10TB disk space in the backup server?

Yes and no and yes...  It stores *changes* to the file systems, so how
much space it needs depends on how full your file systems are, how often
and how much you write to them, etc.  Also, at every recovery point, you
can discard all but the last change since the previous recovery point
for every changed block.

FWIW, the exact same answer applies to pretty much any backup solution
that supports incremental backups.

DES
-- 
Dag-Erling Smørgrav - des at des.no