Live, in-line hardware component upgrades in disaggregated systems

A system for performing hardware upgrades in a disaggregated computing environment, the system comprising:

• at least one processor;
• and
• at least one non-transitory memory storing executable program code and coupled to the at least one processor, wherein, when executing the executable program code, the at least one processor:
• maintains, in the disaggregated computing environment, a plurality of component pools each physically separated from one another and having a plurality of like-typed resources residing therein, wherein the plurality of component pools include a plurality of compute component pools, each of the plurality of compute component pools composed exclusively of processors, a plurality of memory component pools, each of the plurality of memory component pools composed exclusively of memory devices, and a plurality of storage component pools, each of the plurality of storage component pools composed exclusively of storage devices;
• instantiates, in real-time, a dynamically constructed non-virtualized server entity operating as a disaggregated computing system composed of individual hardware components each selected from respective pools of the plurality of component pools, wherein the individual hardware components used to dynamically construct the disaggregated computing system are individual ones of the processors, memory devices, and storage devices respectively selected from the plurality of component pools;
• runs a workload on the disaggregated computing system while physically installing a new component comprised of a single processor of the processors, a single memory device of the memory devices, or a single storage device of the storage devices to at least one of the plurality of component pools used by the disaggregated computing system;
• and
• uses point-to-point circuit wire level switching to switch the disaggregated system from an assigned component residing in a first of the plurality of component pools to the new component residing in a second of the plurality of component pools without pause and interruption of the running workload;
• wherein the point-to-point wire level switching comprises switching an optical link established between the disaggregated computing system and the assigned component to the new component.

A computer program product for performing hardware upgrades in a disaggregated computing environment, by a processor device, the computer program product embodied on a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:

• an executable portion that maintains, in the disaggregated computing environment, a plurality of component pools each physically separated from one another and having a plurality of like-typed resources residing therein, wherein the plurality of component pools include a plurality of compute component pools, each of the plurality of compute component pools composed exclusively of processors, a plurality of memory component pools, each of the plurality of memory component pools composed exclusively of memory devices, and a plurality of storage component pools, each of the plurality of storage component pools composed exclusively of storage devices;
• an executable portion that instantiates, in real-time, a dynamically constructed non-virtualized server entity operating as a disaggregated computing system composed of individual hardware components each selected from respective pools of the plurality of component pools, wherein the individual hardware components used to dynamically construct the disaggregated computing system are individual ones of the processors, memory devices, and storage devices respectively selected from the plurality of component pools;
• an executable portion that runs a workload on the disaggregated computing system while physically installing a new component comprised of a single processor of the processors, a single memory device of the memory devices, or a single storage device of the storage devices to at least one of the plurality of component pools used by the disaggregated computing system;
• and
• an executable portion that uses point-to-point circuit wire level switching to switch the disaggregated system from an assigned component residing in a first of the plurality of component pools to the new component residing in a second of the plurality of component pools without pause and interruption of the running workload;
• wherein the point-to-point wire level switching comprises switching an optical link established between the disaggregated computing system and the assigned component to the new component.