One of the fast growing services in the market of data centers is cloud based storage which follows information life cycle management policies. Every large data center has its own information life cycle management policies. Where as in cloud based data centers, there information are stored at several places for better security of data and its fast access by the customers. We will discuss the modern approach of data center towards the hard disk implementation. We are going to focus on IOPS (input output performance of hard disks), disks higher capability in cloud based data centers and issues of bottleneck in I/O performance. The development and research are being done to increasing the performance of modern data center and its input output server and application performances.
In the paper, we are going to investigate on datacenter and its information life cycle management in it, evaluation of hard disks at data center and its performance, I/O issues and its solution.
Cloud based data center uses numbers of hard disks that are arranged and organized into arrays.Array of hard disks are found in the cloud based data centers. The data that comes into the storage units are arranged into the disks in divided form. The spare disks are used for increasing the speed and performance of input and output . The RAID schemes are used to implement such concept. The hard disk controller controls the I/O Caching. The index are stored with the address to the files that increases the I/O performance. The use of Hot-swappable hard disks gives the removing option to hard disks from the array when it’s required. These technology are used in modern storage along with replication mechanisms which are faster and has been going through research. This mechanisms involves snapshottingwhich is storing of virtual memory into hypervisor-readable data that can be used for future.