Pro-active MPIO based rate limiting to avoid iSCSI network congestion/incast for clustered storage systems

摘要

In an embodiment, a method of managing inbound throughput for at least one storage read request can include analyzing, at a server, a given storage read request to determine required network throughput at network ports of the server. Each of the storage read requests can be directed to a storage device. The method can further include queuing, at the server, the given storage read request if the required throughput of the given storage read request combined with throughput of outstanding storage read requests previously sent to the storage device saturates the available bandwidth of the network ports of the server. The method can additionally include sending the given storage request from the server to the storage device if the required throughput of the storage read request along with throughput of the outstanding read requests is below the level of available bandwidth of the network ports of the server.

主权项

1. A method of managing inbound throughput for at least one storage read request, the method comprising:
analyzing, at a server, a given storage read request to determine required network throughput to return data requested by the at least one storage read request on at least one network port of the server, each of the storage read requests being directed to a storage device; queuing, at the server, the given storage read request if the required throughput of the given storage read request combined with throughput of outstanding storage read requests previously sent to the storage device saturates the available bandwidth of the network ports of the server; and sending the given storage request from the server to the storage device if the required throughput of the storage read request along with throughput of the outstanding read requests is below the level of available bandwidth of the network ports of the server.