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A virtual data room (VDR) is an online secure platform that allows you to share documents with many parties during M&A, due diligence and other financial transactions. VDRs offer a variety of features which make them more useful for dealmakers than cloud storage tools and other document sharing apps. They also focus on security which makes them more suitable for sensitive business information than cloud-based services for consumers that are not secure.
Storage virtualization is the software abstraction layer between physical storage devices and applications. It enables an efficient and flexible usage of storage resources by reducing redundancy requirements, simplifying data migrations and streamlining advanced storage management functions such as snapshots and replication. It also helps cut costs by removing the requirement to predict the future needs for storage, pay for all needed capacity up front or purchase and manage multiple devices to accommodate growth.
The most common virtualized storage is network-based virtualization. It offers a pool storage to servers and applications through the network, such as disks in the Fibre Channel storage area network (SAN) or Internet Small Computer System Interface storage area network (iSCSI). It utilizes redundant arrays of independent disks technology (RAID) to enhance performance and protect data in the case that one drive fails. However, the physical location of the disk and the hardware that it is attached to are hidden from the application and users.
Array-based storage virtualization takes the next step, utilizing the storage controller to blend storage from various arrays and display it as a single pool to applications. This allows enterprises to use storage tiers that are less expensive that could include hard disk drives as well as solid-state drives with various capacities. They can also hide the physical location from servers and users.