In cloud storage remote data integrity checking has its crucial importance. While not downloading the total data purchasers will verify whether or not their outsourced data is unbroken intact. Purchasers have to be compelled to store their data on multi-cloud server's all told practical applications. Meantime so as to avoid wasting the verifier's cost the integrity checking protocol should be economical. During this in this of read the authors tend to propose far off data integrity checking model in multi-cloud storage based on additive pairings ID-RDP (Identity-Based distRibuted provable Data Possession).