A method, non-transitory computer readable medium, and storage management computing device that assists with distributing erasure coded fragments in geo-distributed storage nodes includes receiving an object and a storage reliability requirement from a client computing device. Erasure coding is performed on the received object using an erasure coding scheme. An erasure coding group from a plurality of erasure coding groups present in a plurality of geographically distributed storage nodes is determined based on the received storage reliability requirement and the erasure coding scheme. The erasure coded object is distributed to the determined erasure coding group from the plurality of erasure coding groups in the plurality of geographically distributed storage nodes.