What Is Commissioning (Cx)?_
Commissioning (Cx) is the structured process of testing and verifying that an installed GPU cluster performs to its design intent before it is accepted into production. It runs in levels — from factory verification through site acceptance and integrated systems testing under load — each with a pass gate, and ends with an owner sign-off on the acceptance test plan. Commissioning is what separates a powered-on cluster from an accepted one.
Technical Details
A typical Cx workflow spans five levels: L1 factory witness and component verification against the bill of materials; L2 pre-functional checks of installed but de-energized systems (anchoring, grounding, power chain, mechanical cooling); L3 functional or site acceptance testing of each energized subsystem (power-on, liquid-loop leak test, POST, cable-plant certification); L4 integrated systems testing of the whole cluster under sustained load, including failure-mode tests such as pulling a power feed or failing a CDU pump; and L5 hand-off with the as-built package and formal sign-off. Each level gates the next, so faults are caught at the least costly stage. Commissioning produces the documentation set — test results, cable map, and operational baseline — that the operations team inherits.
How Leviathan Systems Works with Commissioning (Cx)
Leviathan Systems executes the full Cx L1-L5 workflow on the GPU clusters it deploys, delivering the as-built package and acceptance sign-off that transfers a cluster into production.
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