Systems and methods for implementing an enterprise-class converged compute-network-storage appliance

A non-transitory machine-readable medium having executable instructions to cause one or more processing units to perform a method to process a read operation request in a distributed storage system, the method comprising:

• receiving, at one of a plurality of storage controller servers, the read operation request for a virtual node, wherein the write operation request is dispatched from a storage controller client to the storage controller server using a deterministic placement function without storing a global map, and the distributed storage system includes the storage controller client and the plurality of storage controller servers;
• and
• in response to receiving the read operation request,
• determining a mirror set for the read operation request, and
• reading data indicated in the read operation request from the mirror set.

A method to dispatch an input/output request in a distributed storage system, the method comprising:

• receiving, at a storage controller client, the input/output request, wherein the distributed storage system includes the storage controller client, a plurality of storage controller servers, a plurality of virtual nodes distributed among a plurality of physical nodes, and each of the plurality of physical nodes is hosted on one of the plurality of storage controller servers;
• computing a target virtual node for the input/output request, wherein the target virtual node is one of the plurality of virtual nodes and the target virtual node is computed using a deterministic placement function without storing a global map;
• determining a target physical node that corresponds to the target virtual node, wherein the target physical node is one of the plurality of physical nodes;
• and
• dispatching the input/output request to a target storage controller server that corresponds to the target physical node, wherein the target storage controller server is one of the plurality of storage controller servers.

A method to process a read operation request in a distributed storage system, the method comprising:

• receiving, at one of a plurality of storage controller servers, the read operation request for a virtual node, wherein the write operation request is dispatched from a storage controller client to the storage controller server using a deterministic placement function without storing a global map, and the distributed storage system includes the storage controller client and the plurality of storage controller servers;
• and
• in response to receiving the read operation request,
• determining a mirror set for the read operation request, and
• reading data indicated in the read operation request from the mirror set.