This is the current FSM state for this specific DVS deletion request. It's the single field to poll to know whether this particular switch-teardown operation succeeded, is still running, or failed -- important when decommissioning VM-FEX because a failed deletion here can leave an orphaned DVS behind in vCenter that a subsequent re-registration attempt might collide with. A terminal value of 'FSM_FAIL_STS' on this task means the DVS this task targeted is still sitting in vCenter and will likely need manual removal.