Patent ID: 7996497
Filing Date: 2011-08-09
Classification: G06F,H04L

Abstract:
1. A method for enabling a Node Controller (NC), which claims a duplicate or invalid service processor Node Controller Identification (NCID) in a distributed service processor system, to be integrated into the system, said method comprising: reading an NCID by the NC after the NC is booted; saving the NCID into a non-volatile storage and broadcasting an NC Present Message (NPM) to a System Controller (SC) repeatedly until the SC initiates communication, updating the NCID for the NC in the non-volatile storage when the NC receives an NCID change message from the SC and rating a future NPM as a new NCID; and checking a record of a new NC when the SC receives the NPM from the new NC, wherein if the SC has a record of a recorded NC with the same NCID as the new NC, then the SC checks its role as a primary SC, wherein if the SC does not have the record of the recorded NC with the same NCID as the new NC, then the SC checks validity of the NCID,