A virtual dataroom (VDR) lets you securely share online documents with many parties in M&A due-diligence as well as other financial transactions. VDRs have a wide range of features that make them more beneficial to dealmakers than cloud storage applications and other document sharing tools. They also are focused on security, making VDRs a better option for sensitive business data than consumer cloud services that have low security measures.

Storage virtualization is the software abstraction layer that connects physical storage devices and applications. It allows for a more efficient and flexible storage resource utilization by eliminating the need for redundant hardware, easing data transfers, and streamlining complex management functions such as replicas and snapshots. It also reduces costs by eliminating the requirement to forecast the storage requirements for the long term and to purchase all needed capacity in advance, or purchase and maintain multiple devices to support growth.

The most common virtualized storage is network-based virtualization. It uses a pool of storage, such as disks in a Fibre Channel (FC) or Internet Small Computer System Interface (iSCSI) storage area network (SAN) and then presents it to applications and servers over the network. It usually uses redundant array of independent disks (RAID) technology to improve performance and safeguard data in the event that one disk fails, but the physical location of the disk and the hardware that is underlying it are not visible to the applications and users.

Storage virtualization using arrays is the next step. A storage controller can be used to combine storage from multiple arrays into one pool and then present it to applications. This allows businesses to use storage tiers that cost less that could include hard disk drives as well as solid-state drives that have different capacities. They can also conceal the physical location from users and servers.


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