Cloud storage provides users to easily store their data and enjoy the cloud applications need not install in local hardware and software system. In cloud computing, data is moved to a remotely located cloud server. Many users place their data in the cloud and so data integrity is very important issue in cloud storage. In this paper, a flexible distributed storage auditing mechanism, using the homomorphism token and distributed erasure coded data and it support to ensure the correctness and availability of users’ data in the cloud. It also proposes users to audit the cloud storage with very lightweight communication and computation cost.