Problem in IS during Oracle database offline

Hi there…
When the Oracle database is taken offline, WebMethods IS grinds to a halt when DB service is invoked in IS.
IS then refuses to respond or accept connections. Anyone has encountered this problem? How do you solve this?

<Victor/>

Is it a database connection to a backed system, i.e. for order processing? What version of webMethods are you on?
Are you using the Integration Server’s JDBC adapter?