초록 ▼

A system for providing distributed control of a resource with centralized configuration management. A network of distributed workstations is provided for controlling a resource such as a large mainframe computer. Server workstations for applying control commands to the resource are attached to each

A system for providing distributed control of a resource with centralized configuration management. A network of distributed workstations is provided for controlling a resource such as a large mainframe computer. Server workstations for applying control commands to the resource are attached to each resource, preferably through redundant connections. Remote client consoles are defined which may be connected to the server for control of that resource. Server and resource location and primary and fallback connection paths are maintained by a centralized control server. Upon client console request, the central control server causes the server workstation associated with a particular resource to establish a control session between the server and the client console. A record of each dynamic connection is maintained by the central control server. Upon failure of a client console, the server accesses central server fallback information and establishes a fallback connection with an operational client console. Failure of a server workstation causes the resource to establish a link with a backup server which is then able to recover all sessions with client consoles by accessing the dynamic configuration database of the central controller. Configuration data may be updated dynamically taking effect when the next request for establishment of a session is made. In an alternate embodiment, interprocess security is optionally implemented in control servers and hardware resource servers.

대표청구항 ▼

A method for recovering from a failure in a remote resource control environment wherein a resource is controlled by a resource server directed by a remote client, said remote client and said resource server being interconnected by a communications network, said method comprising the steps of: mainta

A method for recovering from a failure in a remote resource control environment wherein a resource is controlled by a resource server directed by a remote client, said remote client and said resource server being interconnected by a communications network, said method comprising the steps of: maintaining fallback configuration data by specifying a fallback client from a control server, said fallback client and said control server being connected to said resource server via said network; controlling and maintaining administration programs and other related data in a central control facility having direct access to said configuration data, said control facility being connected to said remote client and said fallback client and servers via said network; detecting from said resource server the failure of a communications session between said resource server and said remote client; in response to the detection of said session failure, transmitting a request for fallback configuration data specifying said fallback client from said resource server via said network to said control server; accessing said fallback configuration data specifying said fallback client from said control server and transmitting said fallback configuration data via said network to said resource server; and establishing a new communications session over said network with said fallback client from said resource server using said fallback configuration data.