In this workshop, we will present the design and implementation of Wiwynn rack-scale 2-phase immersion cooling management solution. First, we will examine the data schema which defines logical and physical objects of a tank conforms to applicable OCP Profiles. Then we will explain the additional attributes and actions with examples of the adopted chassis types needed for managing a tank. At a quick glance, a tank looks like a super huge enclosure with a bunch of semi-enclosed sleds. However, some intermediate layers in the object hierarchy are needed to signify the influences between each other. For example, we adopt the ChassisType “Cartridge” to contain two bound sleds that cannot be plugged in to or removed from a tank independently. On the other hand, we also implement specific immersion cooling tank management mechanism. For example, we conduct power capping or workload migration to suppress vapor escape while opening a tank lid. At last we will give a video demonstration of the management for Wiwynn Immersion cooling tank.