mirror of https://github.com/apache/cloudstack.git
7d1ec8ff8a
NVMe-oF over TCP (NVMe-TCP) is conceptually a separate storage fabric from Fibre Channel / iSCSI: it speaks the NVMe command set rather than SCSI, identifies namespaces by EUI-128 NGUIDs rather than WWNs, and on Linux is multipathed natively by the nvme driver rather than by device-mapper multipath. Giving it its own StoragePoolType lets the KVM agent dispatch the adaptive driver to a dedicated NVMe-oF adapter (added in the next commit) without polluting the existing Fibre Channel code path. The new value is wired into the same format-routing and derivePath fall-through paths that already special-case FiberChannel in KVMStorageProcessor: NVMe-TCP volumes are also RAW and carry their device path in DataObjectTO.path rather than in a managedStoreTarget detail. |
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