Kjell Rilbe wrote:

> - Shadow must be on local machine while replication can be on different
> server, accessible via network.
>
> - Shadow is always kept up to date for each committed transaction while
> replication can be executed according to whatever schedule or principle
> the replication software provides, including, if supported, for each
> committed transaction (like shadow).
>
> So, shadowing can protect against a disk crash but not against damage to
> the server as a whole (all disks)?
>
> In that case, for backup purposes, shadowing seems to add nothing over a
> raid 1 setup, while replication to a different server would add extra
> security.
>
> Did I get this right?

Yes.

--
Milan Babuskov

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