The difference between ABC type server rooms are different standards, different facilities in the server room, and different scopes of ownership.
1, the standards are different
Class A is fault-tolerant, in the system needs to run, its site equipment shall not be due to operational errors, equipment failure, external power supply disconnection, maintenance and overhaul and interruption of the operation of electronic information systems for the highest level, mainly refers to the relationship between the national life of the design of the server room.
Level B is redundant, during the system needs to run, the location of the equipment should be within the redundancy capacity, and equipment failure shall not interrupt the operation of the electronic information system.
Level C is the basic type, in the case of normal operation of the equipment at the site, it should ensure that the operation of the electronic information system is not interrupted.
2, different computer room facilities
Class A has strict requirements for the security of the computer room, there are perfect computer room security measures. class B has more stringent requirements for the security of the computer room, to have a more complete computer room security measures. class C has basic requirements for the security of the computer room, there are basic computer room security measures can be.
3, belonging to a different range
Like the national meteorological stations, national information centers, computing centers, important military command departments of large and medium-sized cities, airports, radio stations, television stations, emergency command centers, banks and other head offices belong to the class A server room.
Class B is defined as the interruption of the operation of electronic information systems will lead to a certain amount of social order chaos and a certain amount of economic loss of the server room. Scientific research institutes, large and medium-sized cities, weather stations, information centers, disease prevention and control centers, power dispatch centers, international conference centers, international sports venues, provincial and ministerial office buildings belong to the class B server room. In addition to or B-level electronic information systems other than the room are called C-level.