PCI DUAL-PORTED PCI EXPRESS-BASED STORAGE CARTRIDGE INCLUDING SINGLE-PORTED STORAGE CONTROLLERS

摘要

A storage cartridge may include a storage controller including a single PCIe port and a PCIe switch. The PCIe switch includes a first PCIe port communicatively coupled to first PCIe fabric, a second PCIe port communicatively coupled to second different PCIe fabric, and a third PCIe port communicatively coupled to the single PCIe port of the storage controller. The first PCIe port and the second PCIe port may be configured to selectively communicate with an opaque bridge (NTB) of the PCIe switch. Accordingly, the present invention allows a commercial PCIe-based storage controller to be used in a high-availability NAS system.