Abstract: A processor-implemented method for a concurrent software service upgrade is provided. The processor implemented method may include receiving a type of service request corresponding to the software service upgrade, determining, by the processor, the type of service request and then generating a plurality of subpartitions corresponding to a hypervisor. The method may further include applying the service request to at least one subpartition within the plurality of subpartitions, wherein the service request is applied to the at least one subpartition based on the type of service request and balancing the system resources among the plurality of subpartitions upon the applying of the service request to the at least one subpartition.

Abstract: A processor-implemented method for a concurrent software service upgrade is provided. The processor implemented method may include receiving a type of service request corresponding to the software service upgrade, determining, by the processor, the type of service request and then generating a plurality of subpartitions corresponding to a hypervisor. The method may further include applying the service request to at least one subpartition within the plurality of subpartitions, wherein the service request is applied to the at least one subpartition based on the type of service request and balancing the system resources among the plurality of subpartitions upon the applying of the service request to the at least one subpartition.

Abstract: A program loader for virtual machine (VM) operating systems (OS) for computer and data processing systems permits the loading and execution of programs in different virtual machine environments, depending on addressing and residency requirements of the programs. An improved subsystem to the VM operating system contains command language and file management capability that allows programs to be invoked via a direct branch linkage in the addressing mode of the target program, allows the program's addressing mode and residency mode to be dynamically and interactively overridden at any point in the load process, controls whether previously loaded programs remain in storage along with the program that is currently being loaded, and allows the loading and execution of programs that are architecturally dependent as well as programs that have no architecture dependencies.