TL;DR (at least not the entire thread)
--
If you go with Rsync you may find incron an useful add-on as well as with it you can monitor a variety of events on any given file or directory, like OPEN_READ, CREATE, CLOSE, CLOSE_WRITE, etc - and this way backup your data in real time whenever a condition applies.
Also if you will be rsyncing from one computer to another (in contrast to an attached storage) setting up an Rsync daemon on destination will make the sync to be faster and lighter than syncing over ssh; of course that if you need an encrypted connection between the two nodes you will likely be rsyncing over ssh. But again, if you trust your network, the Rsync daemon option will use much less resources.
Also should you go with Rsync, setting up xinetd may be even a better option than having an Rsync daemon constantly running in your target server.
HTH.
On Fri, Mar 13, 2015 at 12:55 PM, Roberto Ragusa <mail@xxxxxxxxxxxxxxxx> wrote:
On 03/10/2015 09:38 PM, Steven Rosenberg wrote:
> Ideally the capacity of your rsync server would be many times that of
> your main server's data so you could make backups daily, weekly and
> monthly and save enough of them for file recovery in the event of
> human error.
>
Actually not. You just a need a slightly larger server, if you
use hardlinks: rsync with option --link-dest or utilities using
the same principle (rsnapshot).
You are perfectly right about human error.
RAID-1 protects from disk failure (transparenty)
rsync protects from human error (and disk failure, but with some inconvenience)
--
Roberto Ragusa mail at robertoragusa.it
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-Martin
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