Methods and systems for managing quality of service in a networked storage environment

A non-transitory, machine readable storage medium having stored thereon instructions for performing a method, comprising machine executable code which when executed by at least one machine, causes the machine to:

• assign a quality of service (QOS) parameter for a storage volume of a networked storage system accessible via a first node and a second node of the networked storage system, wherein the QOS parameter is based on a throughput value defining a maximum data transfer rate and a number of input/output (I/O) operations executed within a time period (IOPS) for the storage volume for storing and retrieving data;
• divide the QOS parameter between the first node and the second node based on a traffic pattern of using the first node and the second node;
• determine whether both throughput credit and IOPS credit are available for processing an I/O request by the first node, the I/O request classified based on a request attribute and assigned to the storage volume, the throughput credit indicating that first node has not reached a throughput threshold and the IOPS credit indicating that the first node has not reached an IOPS threshold;
• process the I/O request by the first node when the throughput credit and the IOPS credit are available;
• and
• use the second node for processing the I/O request, if both the throughput and the IOPS credit are available for the second node and partially unavailable for the first node.

A system comprising:

• a memory containing machine readable medium comprising machine executable code having stored thereon instructions;
• and a processor coupled to the memory, the processor configured to execute the machine executable code to:
• assign a quality of service (QOS) parameter for a storage volume of a networked storage system accessible via a first node and a second node of the networked storage system, wherein the QOS parameter is based on a throughput value defining a maximum data transfer rate and a number of input/output (I/O) operations executed within a time period (IOPS) for the storage volume for storing and retrieving data;
• divide the QOS parameter between the first node and the second node based on a traffic pattern of using the first node and the second node;
• determining whether both throughput credit and IOPS credit are available for processing an I/O request by the first node, the I/O request classified based on a request attribute and assigned to the storage volume, the throughput credit indicating that first node has not reached a throughput threshold and the IOPS credit indicating that the first node has not reached an IOPS threshold;
• processing the I/O request by the first node when the throughput credit and the IOPS credit are available;
• and
• using the second node for processing the I/O request, if both the throughput and the IOPS credit are available for the second node and partially unavailable for the first node.