What is storage virtualization

Server virtualization in VMware, Citrix and Microsoft has obtained the corporate world by storm, enabling organizations to merge tens or hundreds of hardware servers to one or a few hardware servers comprising multiple servers. The outcomes are a lot lower hardware costs, much more efficient utilization of server resources, cooling and power savings, endurance and flexibility. Virtualizing existing Hardware and converting it into files which operate side by side in one major server solves a lot of issues. Slimming costs such as power consumption, saving money because of reduced number of distinguishing systems, much better utilization of given abilities are the main interests.

The main issue to resolve is where to store the data since both virtualization and virtual servers must keep their information somewhere. Organizations of any size today are seeing their storage needs nearly double or triple each year since they digitize business process, expand their Web presence, adopt disk hungry video and audio programs, and retain data and files longer to adhere to regulations and legal pressures. Sadly, from the physical world, storage is generally tied to one server or application. While there are many different sorts of virtualization solutions, the idea of storage for virtualization is quite simple and comparable to that of server virtualization.

This abstracts the logical facet of storage from the physical, enabling you to pool and share large amounts of storage among several programs and servers, irrespective of the physical hardware which lies underneath. The outcome is a single logical storage pool which you could slice, dice and allocate to programs at will. Storage Technology – NAS, Network Attached Storage, Can Be file level computer information storage connected to a pc network that provides access to a heterogeneous group of clients. NAS not just work as a file server, but is specialised for this task. File level implies which a NAS receives information in form of files send by a client in the network.

Consequently NAS provides both storage capacity and an internal file system to keep the received files. The data traffic between the Customers and the NAS Can Be based on protocols like SMB\/CIFS, FTP and\/or NFS. The other important technology in storing information is a SAN, Storage Area Network. SAN is a dedicated network which provides access to consolidated, block level information storage. SANs are mainly used to make storage devices like disk arrays accessible to servers so the devices appear like locally attached devices to the OS. A SAN typically has its storage device that’s usually not accessible throughout the local area network by other devices, which is generally the opposite behaviour of a NAS. SANs are generally using iSCSI, an acronym to get Internet Small Computer System Interface, an Internet Protocol -based storage network standard for linking data storage facilities. This protocol allows clients to send commands to iSCSI storage devices on remote servers.


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