Storage management system and method

A computer program product residing on a non-transitory computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:

• dividing a total IO flow rate limit between a plurality of storage nodes of a multi-node storage system, wherein the total IO flow rate limit as a total IO flow rate between a storage object and the plurality of storage nodes and is defined per storage object accessible by each of the plurality of storage nodes, thus defining a plurality of IO flow rate limits;
• determining a total desired IO flow rate;
• querying each storage node of the plurality of storage nodes for a desired IO flow rate, thus defining a plurality of desired IO flow rates;
• defining, for each storage node, an updated IO flow rate limit based upon, at least in part, the total IO flow rate limit and the plurality of desired IO flow rates;
• and
• processing one or more IO requests on the plurality of storage nodes based upon, at least in part, the updated IO flow rate limit defined for each storage node and the total desired IO flow rate includes processing the one or more IO requests on at least one storage node of the plurality of storage nodes at the updated IO flow rate by multiplying the total desired IO flow rate by the desired IO flow rate for the at least one storage node and limiting a resulting IO flow rate by the updated IO flow rate limit for the at least one storage node.

A computing system comprising:

• a memory;
• and
• a processor configured to divide a total IO flow rate limit between a plurality of storage nodes of a multi-node storage system, thus defining a plurality of IO flow rate limits, wherein the total IO flow rate limit as a total IO flow rate between a storage object and the plurality of storage nodes and is defined per storage object accessible by each of the plurality of storage nodes, wherein the processor is further configured to determine a total desired IO flow rate, wherein the processor is further configured to query each storage node of the plurality of storage nodes for a desired IO flow rate, thus defining a plurality of desired IO flow rates, wherein the processor is further configured to define, for each storage node, an updated IO flow rate limit based upon, at least in part, the total IO flow rate limit and the plurality of desired IO flow rates, and wherein the processor is further configured to process one or more IO requests on the plurality of storage nodes based upon, at least in part, the updated IO flow rate limit defined for each storage node and the total desired IO flow rate which includes processing the one or more IO requests on at least one storage node of the plurality of storage nodes at the updated IO flow rate by multiplying the total desired IO flow rate by the desired IO flow rate for the at least one storage node and limiting a resulting IO flow rate by the updated IO flow rate limit for the at least one storage node.