When you install WebSphere Business Integration Event Broker, the files are stored into the directory /opt/mqsi. You must therefore either create or mount a file system of this name before you install the product.
To prepare the file system, you can choose one of these options:
mkdir -p /bigdisk/mqsi ln -s /bigdisk/mqsi /opt/mqsiSee Checking the operating environment for details of how much space is required.