Re: Slony1 or DRBD for replication ?

On Fri, Apr 14, 2006 at 07:42:29PM +0200, Pierre LEBRECH wrote:
> The second location should be used in case of emergency. So, if my first
> machine/system becomes unreachable for whatever reason, I want to be
> able to switch very quickly to the other machine. Of course, the goal is
> to have no loss of data. That is the context.
>
> Furthermore, I have experience with DRBD (not on databases) and I do not
> know if DRBD would be the best way to solve this replication problem.
>
> Thanks for any suggestions and explanations.
>
> PS : my database is actualy in production in a critical environment

I believe that Continuent currently has the only no-loss (ie:
syncronous) replication solution. DRBD might allow for this as well, if
it can be setup to not return from fsync until the data's been
replicated.
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461