Abstract: A computer-implemented method, a computer system, and a computer program product for data storage alteration monitoring is provided. The present invention may include, obtaining a page record, wherein the page record includes, for an event monitor having an associated target memory address to be monitored for changes, an entry identifying an associated page of a secondary data storage containing the associated target memory address. The present invention may also include, responsive to identifying a first event monitor having an associated first target memory address to be monitored for changes, analyzing the obtained page record to identify a first page containing the first target memory address. The present invention may further include, controlling enablement of the first event monitor based on whether the first page, identified in the analyzed page record, is loaded into a physical main memory of the computer system.

Abstract: A computer-implemented method, a computer system, and a computer program product for data storage alteration monitoring is provided. The present invention may include, obtaining a page record, wherein the page record includes, for an event monitor having an associated target memory address to be monitored for changes, an entry identifying an associated page of a secondary data storage containing the associated target memory address. The present invention may also include, responsive to identifying a first event monitor having an associated first target memory address to be monitored for changes, analyzing the obtained page record to identify a first page containing the first target memory address. The present invention may further include, controlling enablement of the first event monitor based on whether the first page, identified in the analyzed page record, is loaded into a physical main memory of the computer system.

Abstract: Provided are methods, data communication apparatus and computer programs for managing communications between a remote communication manager and a set of communications managers in an associated group. The group of communication managers have shared access to resources which enable any communication manager in the group to recover from failures experienced by another communication manager in the group. In particular, recovery of failed inbound and outbound channels is achieved with the advantage of improved availability of data transmissions. Preferably, the recovery uses synchronization information to ensure that data is recovered to a consistent state to that channel recovery is achieved without loss of data integrity.

Abstract: Provided are methods, data communication apparatus and computer programs for managing communications between a remote communication manager and a set of communications managers in an associated group. The group of communication managers have shared access to resources which enable any communication manager in the group to recover from failures experienced by another communication manager in the group. In particular, recovery of failed inbound and outbound channels is achieved with the advantage of improved availability of data transmissions. Preferably, the recovery uses synchronization information to ensure that data is recovered to a consistent state to that channel recovery is achieved without loss of data integrity.