The current Hot Swap state of the module.
If rlPhdModuleHotSwapAdminStatus is down(2) then
rlPhdModuleHotSwapOperStatus should be down(2). If
rlPhdModuleHotSwapAdminStatus is changed to up(1) then
rlPhdModuleHotSwapOperStatus should change to
up(1) if the module presents; it should remain in the down(2) state if
and only if the module does not present.