Non-Volatile Memory Switch with Host Isolation

A non-volatile memory enclosure comprising:

• a peripheral component interface express (PCIe) interface;
• a plurality of single port non-volatile memory (NVM) devices;
• and
• a NVM switch communicatively coupled between the PCIe interface and the plurality of single port NVM devices, wherein the NVM switch comprises a processor and a machine-readable medium having stored thereon program code executable by the processor to cause the NVM switch to, reserve to different root complexes different memory spaces on the plurality of single port NVM devices;
• and
• prevent an error condition of one of the different root complexes from affecting transactions of another of the different root complexes.

A system comprising:

• a backplane interconnect;
• a plurality of host devices that each comprise a root complex and an interconnect interface that connects the corresponding one of the host devices to the backplane interconnect;
• and
• a non-volatile memory (NVM) enclosure comprising a plurality of single port non-volatile memory (NVM) devices, an interconnect interface that connects the NVM enclosure to the backplane interconnect, and a NVM switch communicatively coupled between the plurality of single port NVM devices and the interconnect interface of the NVM enclosure, wherein the NVM switch comprises,
• a processor and a machine-readable medium having stored thereon program code executable by the processor to cause the NVM switch to prevent an error condition of one of the plurality of host devices from affecting transactions of another of the plurality of host devices.