Memory mapping for object-based storage devices

A computer system for determining a physical address for object access in an object-based storage device (OSD) system, the computer system comprising:

• one or more computer processors, one or more computer readable storage media, and program instructions stored on the one or more computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:
• program instructions to divide a first data object into one or more partitions, including at least a first partition, and providing each partition for storage as individual stored objects in an OSD system;
• program instructions to generate a first entry in a page table, based, at least in part, on:
• program instructions to receive an input/output key allocated from at least one of a firmware component and a hardware component;
• and
• program instructions to add the input/output key in the first entry in the page table, wherein:
• the input/output key represents the first partition;
• and
• the first entry in the page table does not include an indication of a physical address where the first partition is stored;
• program instructions to receive, by a memory management unit (MMU) of the OSD system, a virtual address to access the first partition;
• program instructions to, responsive to receiving the first request of the first partition, determine, by the MMU, that the input/output key included in the first entry of the page table represents the first partition;
• and
• program instructions to retrieve, by at least one of the hardware component and the firmware component, the physical address of the first partition based, at least in part, on utilizing a memory map stored by at least one of the hardware component and the firmware component corresponding to the input/output key.