Thread: DRDB for Standby, Failover

Has anyone used DRDB (http://www.drbd.org/) with Postgres and can speak to its speed/value, specifically in its various replication modes (http://www.drbd.org/users-guide/s-replication-protocols.html)?

On Thu, 29 May 2008, Gavin M. Roy wrote:

> Has anyone used DRDB (http://www.drbd.org/) with Postgres and can speak to
> its speed/value, specifically in its various replication modes (
> http://www.drbd.org/users-guide/s-replication-protocols.html)?

It performs quite well for us. Reads are local so there's nothing
different with performance there. Writes will probably become network
bound, but we're mostly read-only, so haven't approached any limit there.

In terms of value..... well, raid-1 over a network for free seems like a
good value for warm clustering to me.