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What Are Virtual Data Rooms and Storage Virtualization?

A virtual dataroom (VDR) lets you securely share documents online with multiple parties in M&A, due-diligence and other financial transactions. VDRs come with a variety of features which make them more valuable to dealmakers than cloud storage apps and other document sharing tools. They also focus on security which makes them more suitable for sensitive business information than cloud-based services for consumers which have a few security features.

Storage virtualization is a kind of software abstraction layer that acts as a bridge between physical storage devices and applications. It allows for more flexible and efficient use of storage resources by reducing hardware redundancy requirements, making it easier to manage data migrations and streamlining complex storage management functions, such as snapshots and replication. It also helps cut expenses by removing the requirement to forecast future storage needs, pay for all required capacity up front, or purchase and maintain multiple appliances to meet the demands of growth.

The most commonly used storage that is virtualized is the network-based virtualization. It is a way to take a pool of storage, like disks in a Fibre Channel (FC) or Internet Small Computer System Interface (iSCSI) storage area network (SAN), and presents it to servers and applications on the network. It usually uses redundant array of independent disks (RAID) technology to improve performance and protect data in the event that a single disk fails, but the physical disk location and the individual underlying hardware are not visible to the applications and users.

Array-based virtualization of storage takes the next step, using a storage controller to combine the storage of different arrays and display it as a single pool for applications. This lets enterprises use more cost-effective storage tiers that could include solid-state drives as well as hard disk drives with different capacities, and conceal the physical location of these various kinds of storage from both servers and users.

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