Default virtual machine configuration
You can configure the default values of virtual machines for patterns that you use in a trial environment or in a production environment.
To use patterns in a trial environment, you can set the
default values of virtual machines with the virtual CPU and virtual
machine memory that are shown in the following table:
| Virtual machine | Default virtual CPU | Default virtual machine memory (GB) |
|---|---|---|
| Deployment Manager | 1 | 3.0 |
| IBM® HTTP Server | 1 | 2.0 |
| Custom Node | 2 | 7.0 |
| Database | 2 | 3.0 |
Note: If you increase the virtual machine memory for the custom
node, the Java virtual machine (JVM) heap size of the IBM Business
Monitor application
server increases. For example, the JVM heap size of the IBM Business
Monitor application
server is 2.5 GB if the VM memory is 6 GB by default. When the virtual
machine memory increases to 12 GB, the JVM heap size of the IBM Business
Monitor application
server is automatically tuned to 5 GB. Therefore, increase the added
disk size before deploying applications to ensure that the added disk
size is large enough for the possible dump files. You can count the
size of the dump files as the triple of JVM heap sizes.
To
use patterns in a production environment, you can set the default
values of virtual machines with the virtual CPU and virtual machine
memory that are shown in the following table:
| Virtual machine | Default virtual CPU | Default virtual machine memory (GB) |
|---|---|---|
| Deployment Manager | 2 | 3.0 |
| IBM HTTP Server | 2 | 4.0 |
| Custom Node | 8 | 10.0 |
| Database | 8 | 24.0 |