Abstract: In one embodiment, a computer program product for modifying a virtual storage access method (VSAM) data set during open time, the computer program product including a computer readable storage medium having computer readable program code embodied therewith, the embodied computer readable program code including computer readable program code configured to open a VSAM data set, and computer readable program code configured to modify a VSAM control block structure for the VSAM data set while the VSAM data set is open during an open time in which static data set characteristics and/or job parameters have been defined for the VSAM data set, wherein the computer readable program code configured to modify the VSAM control block structure includes computer readable program code configured to interact with the VSAM data set within a VSAM dynamic address space using at least one of: a VSAM console interface and a VSAM programming interface.

Abstract: In one embodiment, a computer program product for modifying a virtual storage access method (VSAM) data set during open time, the computer program product including a computer readable storage medium having computer readable program code embodied therewith, the embodied computer readable program code including computer readable program code configured to open a VSAM data set, and computer readable program code configured to modify a VSAM control block structure for the VSAM data set while the VSAM data set is open during an open time in which static data set characteristics and/or job parameters have been defined for the VSAM data set, wherein the computer readable program code configured to modify the VSAM control block structure includes computer readable program code configured to interact with the VSAM data set within a VSAM dynamic address space using at least one of: a VSAM console interface and a VSAM programming interface.

Abstract: When using virtually stored data sets, such as virtual storage access method (VSAM) data sets, while the data set is open (referred to as an open time) static data set characteristics and/or job parameters have been defined for the VSAM data set. In one approach, a method for modifying a virtual storage access method (VSAM) data set includes opening a VSAM data set; and modifying a VSAM control block structure for the VSAM data set.

Abstract: When using virtually stored data sets, such as virtual storage access method (VSAM) data sets, while the data set is open (referred to as an open time) static data set characteristics and/or job parameters have been defined for the VSAM data set. In one approach, even after a data set is opened, a virtually stored control block structure for the data set may be modified, such as by providing a dynamic address space associated with the data set in order to interact with the data set in an environment which allows for a service block request to modify the control block structure, such that data set characteristics and/or job parameters for the data set may be modified during the open time of the data set.

Abstract: When using virtually stored data sets, such as virtual storage access method (VSAM) data sets, while the data set is open (referred to as an open time) static data set characteristics and/or job parameters have been defined for the VSAM data set. In one approach, even after a data set is opened, a virtually stored control block structure for the data set may be modified, such as by providing a dynamic address space associated with the data set in order to interact with the data set in an environment which allows for a service block request to modify the control block structure, such that data set characteristics and/or job parameters for the data set may be modified during the open time of the data set.