If you have a 64-bit OS and machine, with 64-bit JVM, then you can allocate more than 3.4 GB of memory to DataTurbine by adding the '-d64' command line switch. This tells Java to use a 64-bit JVM instead of the default 32-bit.

We have a dedicated Sun Fire T-2000 server with 32 CPUs, 16GB of memory, 9TB of disk and 4 gigabit Ethernet ports. This server runs a 64-bit operating system and Java environment, making it an ideal candidate for development, testing, scalability analysis and porting. We are using this system to test the performance and scalability of the 64-bit DataTurbine. Here's an example from our Sun T2000 server, setting up a DataTurbine with 8GB of memory:

java -d64 -Xmx8192M -jar $RBNB_HOME/bin/rbnb.jar

We've tested this up to 12GB.