Abstract: A method for suppressing data mirroring between a primary storage system and a secondary storage system is disclosed. In one embodiment, such a method includes defining a data class with an attribute designed to suppress mirroring of data from a primary storage system to a secondary storage system. The method assigns a data set to the data class, thereby causing the data set to inherit the attribute. In certain embodiments, assigning the data set to the data class includes recording the attribute in one or more of a volume-table-of-contents (VTOC) and a catalog used to reference the data set. The method automatically suppresses mirroring of the data set from the primary storage system to the secondary storage system in accordance with the assigned attribute. A corresponding system and computer program product are also disclosed.

Abstract: A method for suppressing data mirroring between a primary storage system and a secondary storage system is disclosed. In one embodiment, such a method includes defining a data class with an attribute designed to suppress mirroring of data from a primary storage system to a secondary storage system. The method assigns a data set to the data class, thereby causing the data set to inherit the attribute. In certain embodiments, assigning the data set to the data class includes recording the attribute in one or more of a volume-table-of-contents (VTOC) and a catalog used to reference the data set. The method automatically suppresses mirroring of the data set from the primary storage system to the secondary storage system in accordance with the assigned attribute. A corresponding system and computer program product are also disclosed.

Abstract: In various embodiments, a method, system, and computer program product for injecting error code include logic and/or program instructions configured to determine, by a local processor, critical points in executing code of software under test on a remote system, build, by the local processor, a testcase to invoke the software under test on the remote system, determine, by the local processor, an appropriate response action for each critical point based on an error encountered at each critical point as reported by a remote processor of the remote system, cause, by the local processor, the remote processor to inject a critical point segment into the executing code at a corresponding critical point, and receive, by the local processor, a unique identifier of each critical point segment output by the remote processor in response to injecting the critical point segment into the executing code.

Abstract: In various embodiments, a method, system, and computer program product for injecting error code include logic and/or program instructions configured to determine, by a local processor, critical points in executing code of software under test on a remote system, build, by the local processor, a testcase to invoke the software under test on the remote system, determine, by the local processor, an appropriate response action for each critical point based on an error encountered at each critical point as reported by a remote processor of the remote system, cause, by the local processor, the remote processor to inject a critical point segment into the executing code at a corresponding critical point, and receive, by the local processor, a unique identifier of each critical point segment output by the remote processor in response to injecting the critical point segment into the executing code.

Abstract: In various embodiments, a method, system, and computer program product for injecting error code include logic and/or program instructions configured for determining critical points in executing code of software under test, building a testcase to invoke the software under test, determining an appropriate response action for each critical point based on an error encountered at each critical point, injecting a critical point segment into the executing code at a corresponding critical point, and outputting a unique identifier of each critical point segment, the testcase being configured to issue commands, with each command limiting which of one or more critical points remains active based on one of: a number of times the one or more critical points have been accessed in the executing code, a number of times a critical point has been skipped, and an amount of times a critical point has been accessed versus skipped.

Abstract: In various embodiments, a method, system, and computer program product for injecting error code include logic and/or program instructions configured for determining critical points in executing code of software under test, building a testcase to invoke the software under test, determining an appropriate response action for each critical point based on an error encountered at each critical point, injecting a critical point segment into the executing code at a corresponding critical point, and outputting a unique identifier of each critical point segment, the testcase being configured to issue commands, with each command limiting which of one or more critical points remains active based on one of: a number of times the one or more critical points have been accessed in the executing code, a number of times a critical point has been skipped, and an amount of times a critical point has been accessed versus skipped.

Abstract: In one embodiment, a computer program product for injecting error code includes a computer readable storage medium having computer readable program code embodied therewith. The computer readable program code includes computer readable program code configured to determine critical points in executing code of software under test, computer readable program code configured to determine an appropriate response action for each critical point based on an error encountered at each critical point, computer readable program code configured to inject a critical point segment into the executing code at a corresponding critical point, and computer readable program code configured to output a unique identifier of each critical point segment. In another embodiment, a system includes a processor, and a computer readable storage medium having computer readable program code embodied therewith having the above described functionality. Other systems and computer program products are described according to more embodiments.

Abstract: In one embodiment, a computer program product includes a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code being configured to: assign volume(s) to either a storage group or a reserve storage pool group, designate each of the volume(s) assigned to the storage group as a storage volume, designate each of the volume(s) assigned to the reserve storage pool group as a reserve storage volume, receive policy attributes for the storage group including a storage utilization goal and a default reserve storage pool assignment, monitor a storage utilization level for the storage group, detect when the storage utilization level for the storage group falls outside of the ideal storage utilization range, and adjust an available storage amount for the storage group to bring the storage utilization level within the ideal storage utilization range.

Abstract: In one embodiment, a computer program product includes a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code being configured to: assign volume(s) to either a storage group or a reserve storage pool group, designate each of the volume(s) assigned to the storage group as a storage volume, designate each of the volume(s) assigned to the reserve storage pool group as a reserve storage volume, receive policy attributes for the storage group including a storage utilization goal and a default reserve storage pool assignment, monitor a storage utilization level for the storage group, detect when the storage utilization level for the storage group falls outside of the ideal storage utilization range, and adjust an available storage amount for the storage group to bring the storage utilization level within the ideal storage utilization range.

Abstract: In one embodiment, a computer program product for injecting error code includes a computer readable storage medium having computer readable program code embodied therewith. The computer readable program code includes computer readable program code configured to determine critical points in executing code of software under test, computer readable program code configured to determine an appropriate response action for each critical point based on an error encountered at each critical point, computer readable program code configured to inject a critical point segment into the executing code at a corresponding critical point, and computer readable program code configured to output a unique identifier of each critical point segment. In another embodiment, a system includes a processor, and a computer readable storage medium having computer readable program code embodied therewith having the above described functionality. Other systems and computer program products are described according to more embodiments.

Abstract: A high-speed cache is shared by a plurality of independently-operating data systems in a multi-system data sharing complex. Each data system has access both to the high-speed cache and to lower-speed, upper-level storage for obtaining and storing data. Management logic in the shared high-speed cache is provided to meet the serialization and data coherency requirements of the data systems when sharing the high speed cache as a store-multiple cache in a multi-system environment.