Abstract: A system is described that includes a network interface attached to a persistent memory unit. The persistent memory unit is configured to receive checkpoint data from a primary process, and to provide access to the checkpoint data for use in a backup process, which provides recovery capability in the event of a failure of the primary process. The network interface is configured to provide address translation information between virtual and physical addresses in the persistent memory unit. In other embodiments, the persistent memory unit is capable of storing multiple updates to the checkpoint state. The checkpoint state and the updates to the checkpoint state, if any, can be retrieved by the backup process periodically, or all at once upon failure of the primary process.

Abstract: A method of updating database volumes by writing database updates to a smart storage controller, and having the smart storage controller generate the log update records for updating local and remote log volumes, and data volumes.

Abstract: A method of updating database volumes by writing database updates to a smart storage controller, and having the smart storage controller generate the log update records for updating local and remote log volumes, and data volumes.

Abstract: In at least one embodiment, transaction processing systems comprise non-disk persistent memory that is utilized to commit transactions.

Abstract: In at least one embodiment, transaction processing systems comprise non-disk persistent memory that is utilized to commit transactions.

Abstract: In at least one embodiment, transaction processing systems comprise non-disk persistent memory that is utilized to checkpoint during transaction commitment.

Abstract: A system is described that includes a network interface attached to a persistent memory unit. The persistent memory unit is configured to receive checkpoint data from a primary process, and to provide access to the checkpoint data for use in a backup process, which provides recovery capability in the event of a failure of the primary process. The network interface is configured to provide address translation information between virtual and physical addresses in the persistent memory unit. In other embodiments, the persistent memory unit is capable of storing multiple updates to the checkpoint state. The checkpoint state and the updates to the checkpoint state, if any, can be retrieved by the backup process periodically, or all at once upon failure of the primary process.

Abstract: A system is described that includes a network attached persistent memory unit. The system includes a processor node for initiating persistent memory operations (e.g., read/write). The processor unit references its address operations relative to a persistent memory virtual address space that corresponds to a persistent memory physical address space. A network interface is used to communicate with the persistent memory unit wherein the persistent memory unit has its own network interface. The processor node and the persistent memory unit communicate over a communication link such as a network (e.g., SAN). The persistent memory unit is configured to translate between the persistent memory virtual address space known to the processor nodes and a persistent memory physical address space known only to the persistent memory unit. In other embodiments, multiple address spaces are provided wherein the persistent memory unit provides translation from these spaces to a persistent memory physical address space.