We have an HMC on our 9406-520. We have only one partition (no LPARs) and will never have any others. The firmware update policy is set to HMC managed. This is how it was set up by the BP during the system installation. Why do I care? It seems that it would be much easier for me to have firmware updates managed by the OS through the PTF process instead of messing with the HMC. What am I missing? Thanks.