Add a control enclosure to an existing system.
https://datacentersupport.lenovo.com/us/en/products/storage/lenovo-storage/v3700v2/6535 or http://support.lenovo.com/us/en/products/servers/lenovo-storage/v5030
To add another control enclosure into an existing system, complete the following steps:
This step completes the quick installation procedures. If you are setting up for the first time, see the configuring topics and continue to follow the tasks available in Getting Started from the management GUI. If you added another control enclosure into an existing system, continue to do your standard tasks.