Hi,

We have a series of severs that are each running Tomcat, and load
balanced through Apache. They all share the same firebird database on
a dedicated machine on the backend - v1.5. We initially started with
SuperServer, but had stability and other problems with that, so we
switched to Classic. Each server uses a db connection pool with
approx 30 connections.

When we scale up, we seem to hit a wall at around 7 servers, where the
database machine cannot keep up.

Can anyone suggest ways that we can get around this issue? Does
anyone have experience with some of the other "commercial" dbs -
Oracle/Sql Server etc.? Would switching to one of these likely help us?

many thanks,

David