A data safe-keeping virtualization resolution lets you decrease the number of physical hardware solutions needed to support applications. It can this by simply abstracting actual disk and travel components and aggregating their very own capacity as a single pool area of storage area available to applications for use. This pool of storage can now be managed with a central system to deliver functional and economic benefits just like faster what is a bolt-on acquisition resource provisioning and tragedy recovery functions.
The key to storage virtualization is program that intercepts input/output (I/O) requests from physical and virtual hosts and ways them to the appropriate physical position on a shared pool of storage. To the application, the virtual storage appears as a single, contiguous disk or rational unit quantity (LUN) to accept regular read and write surgical procedures.
While simple storage devices, such as solitary hard disk drives and basic storage arrays, do not provide any form of virtualization, advanced disk arrays offer a reasonable to physical abstraction through RAID systems and a host-based volume manager. This type of virtualization enables features like snapshots, cloning and replication to get supported across different sellers.
Network-based safe-keeping virtualization is the most common form of the technology. In this approach, a purpose-built product connects for all the storage space hardware within an FC or iSCSI utility area network (SAN) and shows them as being a single pool area of storage space. For the operating system or perhaps application, the resulting online disks or perhaps LUNs seem as though they will reside on a single physical storage and have total functionality, including multi-pathing application.