Abstract: A server management system, in which the setting work for a plurality of managed servers each having a network boot-up device is collectively carried out by acquiring the required information from a central management server or a storage server at the time of activation. The central management server or the storage server has collectively stored therein all of the programs, the setting information and the data used by the individual managed servers to be managed, thereby making it possible to reduce the capacity of the storage unit. Further, the work of updating the program and the back-up can be performed collectively, and therefore the storage unit of each managed server is eliminated. As a result, a multiplicity of servers of various types can be collectively introduced, operated and managed thereby to reduce the work load for server management.