Patent attributes
A programmable switch includes ports configured to communicate with Non-Volatile Memory express (NVMe) nodes. The programmable switch is configured to store a mapping of NVMe namespaces to physical storage locations located in the NVMe nodes. An NVMe node is determined by the programmable switch to have become inactive, and one or more NVMe namespaces are removed from the mapping that are associated with one or more physical storage locations in the inactive NVMe node. A notification of the one or more removed NVMe namespaces is sent to a network controller. According to one aspect, the network controller stores a global mapping of NVMe namespaces to physical storage locations in the NVMe nodes. The network controller sends at least one notification of the update to at least one other programmable switch to update at least one mapping stored at the at least one other programmable switch.
