A virtual data room (VDR) is a secure online platform that lets you share documents with various parties during M&A due diligence and other financial transactions. VDRs come with a variety of features that make them more valuable for dealmakers than cloud storage tools and other document sharing applications. They also place a premium on security, which makes them better for sensitive business data than cloud-based services for consumers that have minimal security measures.
Storage virtualization is a software abstraction layer that acts as a bridge between physical storage devices and applications. It allows for the more efficient and flexible use of storage resources by reducing redundancy requirements, making it easier to manage the process of moving data and streamlining more advanced storage management features like snapshots and replication. It can also cut costs by eliminating the requirement to forecast the future storage requirements and to pay for all the necessary capacity in advance, or purchase and maintain multiple devices to support the growth.
Network-based storage virtualization is the most common form of virtualized storage. It offers a pool of storage to servers and applications over the network, for instance disks within the Fibre Channel storage area network (SAN) or Internet Small Computer System Interface storage area network (iSCSI). It uses redundant arrays of independent disks technology (RAID) to improve performance and protect data in the event that one drive fails. However, the exact physical location of the disk and the individual hardware are kept from the applications and users.
Storage virtualization using arrays is the next step. A storage controller is utilized to integrate storage from multiple arrays into one pool and present it to applications. This allows enterprises to use more cost-effective storage options that could include solid-state drives as well as hard disk drives with different capacities, and conceal the physical location of these different types of storage from both servers and users.
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