Novel Approach: Clustered Cache Parallel NFS and Implementing Across Wide Area Network: Disaster Recovery Centers Latesh Kumar K J 1 and R Lawrance 2 1 Department of CSE, Siddaganga Institute of Technology, Tumkur, Karnataka 2 Department of MCA, Ayya Nadar Janaki Ammal College, Sivakasi, Tamilnadu Email: latesh.kj@hotmail.com, lawrancer@yahoo.com Abstract— Bulk Data transfer is not a primary concern, network latency still impacts performance over wide area network using the traditional data sharing protocols. Many communications protocols, including common file sharing protocols such as network file system (NFS) and common Internet file system (CIFS), were designed to work in a local area network (LAN) environment where latency is extremely low. Even simple actions, such as retrieving the attributes of a file, can require numerous round trips across the network. In a WAN environment, each of those round-trips carries a latency penalty, dramatically slowing operations; here is a new approach of using the CpNFS extension to the popular NFS standard, to overcome the latency and bulk carriage across data center facility for disaster management computing system and between primary and backup disaster recovery centers. Index Terms— CpNFS, NFS, CIFS, RAID, IETF I. INTRODUCTION Disaster center computing can have very different requirements than the more common and computationally less demanding grid [9] computing. Although the size of the computational resources requested by a disaster centre present its own difficulties, an onerous difficulty is satisfying the associated data requests to the various clients. In addition to backing up very large datasets, sometimes the datasets are also be mirrored to redirected disaster centre’s based on business requirement, which has unpredictable characteristics, must be handled successfully or the whole process may be for naught. Conventionally, the dataset moves to the premeditated disaster recovery resource base which redirect to another backup disaster recovery site available, which also requires a move to some permanent home. An error at any point can lead to job termination, with possible loss of huge data. These concerns have lead to great interest by both users and data center management in NFS file systems because of the latency. A cluster pNFS [11] file system greatly simplifies the process by allowing all I/O operations to occur as if to a local resource with new technology in place by balancing the failover situations. Data centre computing is particularly amenable to this approach, which generally transfers sufficiently large datasets such that latency concerns are not paramount. This new approach is mainly intending to remove traditional performance bottlenecks, reduces the total cost of © Elsevier, 2014 Proc. of Int. Conf. on Advances in Communication, Network, and Computing, CNC