Abstract: A method, apparatus, and program product manage data during a logical partition migration. Data from a source logical partition is transformed into partition state records by a source migration services partition. The records are transmitted to a target migration services partition that processes the records and loads the data into a target logical partition. The logical partition migration may take place from a first computer to a second computer, or solely in a first computer. The migration services partitions may be configured with multiple virtual processors to create and send, or receive and process, partition state records in parallel.

Abstract: Methods, systems, and articles of manufacture for allowing an update to an executable component, such as a logical partitioning operating system, running on a computer system without requiring a reboot (or IPL) of the computer system are provided. Processors or tasks executing in a portion of code being updated may be forced to a known or “quiesced” state (e.g., designated wait points) before applying the update. If any of the processors or tasks are not in their quiesced state, the update is not applied or may be rescheduled for a later time, in an effort to allow the system to reach the quiesced state.

Abstract: A method, apparatus, and program product manage data during a logical partition migration. Data from a source logical partition is transformed into partition state records by a source migration services partition. The records are transmitted to a target migration services partition that processes the records and loads the data into a target logical partition. The logical partition migration may take place from a first computer to a second computer, or solely in a first computer. The migration services partitions may be configured with multiple virtual processors to create and send, or receive and process, partition state records in parallel.

Abstract: An apparatus, program product and method for facilitating logical partition migrations between computers by determining if the firmware of the computers is compatible. A hypervisor of a source logical partition may transfer a token and compatibility table indicative of firmware running on the source computer. A hypervisor on the system of the target logical partition may compare the firmware indicated by the token with a token and/or compatibility table listing firmware versions compatible with the target computer. Conversely, a token of the target computer may be compared to a compatibility table associated with firmware that is compatible with the source computer. In either instance, a match may result in the migration of the logical partition. Alternatively, an absence of a match may result in the migration being prohibited.

Abstract: Methods, systems, and articles of manufacture for allowing an update to an executable component, such as a logical partitioning operating system, running on a computer system without requiring a reboot (or IPL) of the computer system are provided. Processors or tasks executing in a portion of code being updated may be forced to a known or “quiesced” state (e.g., designated wait points) before applying the update. If any of the processors or tasks are not in their quiesced state, the update is not applied or may be rescheduled for a later time, in an effort to allow the system to reach the quiesced state.