Weblogic and Oracle RAC + DataGuard

Hi,
I am testing Weblogic 9.2 with Oracle 10g RAC (2 nodes) and Oracle DataGuard and I am trying to figure out the best possible data source configuration that would handle load balancing between RAC nodes and failover/switchback between RAC nodes and the standby database. The problem that I see is that all Oracle instances have to be open in order to successfully deploy the data sources on Weblogic. This means that at creation/deployment time and after every Weblogic reboot all Oracle instances have to be up and running and accepting connections, because otherwise the data sources won't be instantiated and therefore not accessible to the consuming application.
Is there any way to smoothly deploy the data sources without having to go through the hassle of making sure that all RAC nodes and DataGuard are open?
What I would expect is that the data source would be instantiated but disabled if no connection is available. Having to redeploy the data source once the database instance is again available is a limitation in providing transparent high availability.
Thanks.

Hi, yes. Configure the pool to have an initial capacity of zero. Then it will
deploy and not try to make any connections. It will only try when/if
it is asked for one at runtime. Even if the DBMS is not up, the
DataSource will just throw an exception until the DBMS is up.

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