Rolling upgrades in disaggregated systems

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

• at least one processor, wherein the at least one processor:
• provides a rolling upgrade manager for upgrading one or more disaggregated servers;
• uses a designated memory area for storing an updated software component;
• switches a disaggregated server to the designated memory area from a currently assigned memory area when performing the software upgrade;
• and
• commensurate with performing the software upgrade, maintains a process state and program data in the currently assigned memory area while maintaining the updated software component in the designated memory area such that the process state and program data are read from the currently assigned memory area and the updated software component is read from the designated memory area during currently executing operations of the disaggregated server.

A computer program product for performing rolling software upgrades in a disaggregated computing environment by at least one 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 provides a rolling upgrade manager for upgrading one or more disaggregated servers;
• an executable portion that uses a designated memory area for storing an updated software component;
• an executable portion that switches a disaggregated server to the designated memory area from a currently assigned memory area when performing the software upgrade;
• and
• an executable portion that, commensurate with performing the software upgrade, maintains a process state and program data in the currently assigned memory area while maintaining the updated software component in the designated memory area such that the process state and program data are read from the currently assigned memory area and the updated software component is read from the designated memory area during currently executing operations of the disaggregated server.