Cheaper backup mechnism for a server

[Wojciech Puchar]

>
> raid is a good solution for avoiding data loss due to hard disk failure (at
> different rates depending on the raid type ). But it wont help you if someone
> accidentally or on purpose delete files. Raid will happily replicate the
> deletion across all your disks :)

of course, that's why i use rsync, and use cp -lpR to make multiple 
generations on backup server every day. i delete the oldest when there are 
out of space.

but gmirror+ggated/c is a good idea for those having more than 1 server 
and gigabit interfaces - do mirrorring spanning different machines (like 
mirror of first on second, mirror of second - on first).

PLUS BACKUPS.

> the server back online" step ;) it's too late by then to realise you should've
> backed up /etc and /var/ , for example.

best to do exclude - instead of include - backup list