Address space management while switching optically-connected memory

An optically-connected memory (OCM) system for address space management, comprising:

• at least one processor device operable in the computing storage environment, wherein the at least one processor device:
• signals a remote processor for receiving a remote machine memory address (RMMA) space that contains data to be transferred, and
• maps the RMMA space to a free portion of a system memory address (SMA) space of the remote processor, wherein entries of a page table corresponding to the SMA space are created.

In an optically-connected memory (OCM) system, for address space management, a computer program product in a computing environment using a processor device, the computer program product comprising a computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:

• a first executable portion that signals a remote processor for receiving a remote machine memory address (RMMA) space that contains data to be transferred;
• and
• a second executable portion that maps the RMMA space to a free portion of a system memory address (SMA) space of the remote processor, wherein entries of a page table corresponding to the SMA space are created.