Description
This script only as learning to use, not for any commercial purposes.
This article is original, follow CC 4.0 by-sa copyright agreement, reproduced, please attach the original source link and this statement.
#A I understand CMDB
CMDB translated, Configuration Management DataBase, configuration management actually means, but the actual situation, the definition of the concept of a CMDB there have been significant limitations. In the era of ITIL, CMDB landing too many projects, but with little success. If you want to CMDB "Configuration" should be removed from the inside, then it must be re-set to a boundary. In this border demarcation, we can learn from the CMDB need to go through three stages: asset management, configuration management to today's IT resource management.
Asset management around the hardware attributes, purchasing property, the cost of property, purchasing property, firmware management, and so on; configuration management around service management, configuration management, etc., but the scope is too broad configuration, resulting in easy management out of control, such as application configuration, environment configuration, middleware management and other parameters not fit into the CMDB, distributed configuration center Apollo, Nacos is evidence; iT resource management to further reduce its management capabilities, things can not produce service capabilities are stripped out, is not included in the scope of management.
Once we have the convergence of the borders is the CMDB management of IT resources, then we need to know the resources, resource atlas concept itself, as well as its associated service capabilities constitute a resource not only resources resulting. Resource atlas is intended to describe the IT world in the presence of a variety of physical resources and its relationship to form a complex entity relationship diagram and resources, the resource node represents an entity, relationship constituted by side. In the concept of resource map, the map has to describe the real world of two layers, the first layer is the physical layer , the second layer is a resource layer , and finally their relationship expression . Entity is from the real world, intuitively see, for example, networks, firewalls, applications, databases, middleware, etc., usually an entity on behalf of a class of service capabilities. Further down, entities with external service capabilities must be implemented in its associated resources, such as ports, resource deployment and service application system, CPU on the host infrastructure / network / storage, and so on network resources.
That in the end is what IT resources? All directly or indirectly, the business value of IT services entity can be called resources. The design of the I · M · U automation operation and maintenance platform will also join the CMDB module dimension to provide the most reliable cornerstone by consolidating IT resources for the operation, and then combine the application and value of the services to achieve our operation and maintenance of core values.