Storage subsystem-driven zoning protocol embodiments in a nonvolatile memory express environment
Abstract:
Embodiments presented herein solve issues related to non-volatile memory express (NVMe®) protocol differences from other protocols, such as Fibre Channel Common Transport, which is the protocol used for Zoning management in Fibre Channel. Fibre Channel Common Transport supports bidirectional transfers of data. However, NVMe® commands support transfer of data either with the command (e.g., host-to-controller data transfer (e.g., a “write” operation)) or with the response (e.g., controller-to-host data transfer (e.g., a “read” operation)), but not both creates a problem related to zoning in NVMe® networks. Furthermore, data size limits for submission queue entries and completion queue entries for NVMe® commands add other obstacles. Embodiments herein address these limitations.
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