Method of updating network reconfiguration information exchanged between a host computer and a communication control processor

A network reconfiguration information processing method for use with a network system including at least one host computer provided with network configuration definition information and a directory file for storing a plurality of reconfiguration directories each including at least a reconfiguration designating data for defining a relation between said network and a resource to be deleted from or added to said network, a communication control processor connected to said host computer, and a plurality of resources connected to said communication control processor, the network reconfiguration information processing method comprising the steps of:

• supplying, by an operator of the network system, a reconfiguration directory to said host computer to add the reconfiguration directory in said directory file;
• inputting, by said operator, a reconfiguration command for instructing said host computer to update said network configuration definition information;
• responsive to said reconfiguration command, reconfiguring said network configuration definition information, by said host computer, in accordance with a reconfiguration designating data defined within said reconfiguration directory which is designated by said reconfiguration command;
• inputting, by said operator, a cancel command designating a one of said reconfiguration directories stored in said directory file, instructing said host computer to cancel at least a part of already executed reconfigurations of said network configuration definition information;
• and,
• responsive to said cancel command, performing a cancellation of a part of the reconfiguration of said network configuration definition information already executed in accordance with said defined reconfiguration designating data within said designated reconfiguration directory, to restore said network configuration definition information to a state before the reconfiguration, and to delete a one of said reconfiguration directories from said directory file in accordance with the reconfiguration designating data within a reconfiguration directory designated by said cancel command.

A method of processing reconfiguration information in a network system including a plurality of host computers at least one of which operates as a master while others operate as slaves, each of said host computers being provided with configuration definition information and a directory file for storing a plurality of reconfiguration directories, at least one communication control processor provided with configuration definition information and commonly connected to said plurality of host computers, and a plurality of resources connected to said plurality of host computers, and a plurality of resources connected to said communication control processor, said network reconfiguration information processing method comprising the steps of:

• supplying, to each of said host computers by an operator of the network system, a reconfiguration directory, said reconfiguration directory including at least one reconfiguration designating data for defining a relation between said network and a resource to be deleted from or added to said network;
• issuing, by said operator, a reconfiguration command designating said reconfiguration directory to each of said host computers;
• responsive to said reconfiguration command, reconfiguring said network configuration definition information in accordance with the reconfiguration designating data within said reconfiguration directory designated by said reconfiguration command and storing said designated reconfiguration directory in said directory file, by each of said host computers, respectively;
• and,
• when said reconfiguration designating data within said reconfiguration directory corresponds to a resource to be connected to said communication control processor, transmitting, from said master host computer to said communication control processor, a control command instructing said communication control processor to reconfigure said network configuration definition information in said communication control processor in accordance with said reconfiguration designating data.

A method of processing reconfiguration information in a network system including a plurality of host computers at least one of which operates as a master and others operate as slaves, each of said plurality of host computers being provided with configuration definition information and a directory file for storing a plurality of reconfiguration directories, at least one communication control processor provided with configuration definition information related thereto and commonly connected to said host computers, and a plurality of resources connected to said communication control processor, said network reconfiguration information processing method comprising the steps of:

• inputting to a first one of said host computers a command designating a one of said plurality of reconfiguration directories for instructing a reconfiguration of said network configuration definition information of said first host computer, said reconfiguration directory including a reconfiguration designating data related to at least one resource to be added to or delete from said network;
• reconfiguring, by said one host computer, said network configuration definition information of said first host computer in accordance with a format of said inputted command and the contents of said designated reconfiguration directory;
• when said first host computer is a master and said reconfiguration designating data within said designated reconfiguration directory corresponds to a resource of said communication control processor, transmitting, from said master host computer to said communication control processor, a control command instructing said communication control processor to reconfigure said network configuration definition information of said communication control processor in accordance with the format of said inputted command and the content of said reconfiguration designating data, said control command including a reconfiguration directory, and an indicator for indicating that said reconfiguration directory is the last one to be processed by said communication control processor;
• reconfiguring the network configuration information of said communication control processor in response to said control command, by said communication control processor;
• updating, by said communication control processor, first status information stored in correspondence with said reconfiguration sequence number in accordance with whether said communication control processor has successfully reconfigured said network configuration information, and transmitting, from said communication control processor to said master host computer, a response message including information representative of whether said reconfiguring of said network configuration information has been executed successfully;
• and,
• updating, by said master host computer, second status information stored in correspondence with said reconfiguration sequence number in accordance with the contents of said response message received from said communication control processor.