Storage virtualization is an IT solution that combines multiple physical storage devices into one storage device, for example a storage area network (SAN). This allows data centres to use hardware of a common type at a minimal cost while also managing the combined storage space with software. This allows for the most advanced storage algorithms to be applied to the hardware, resulting in faster data storage.
Virtual storage solutions offer many advantages. They include improved space utilization, simplified management, improved performance and reduced risk. It also allows for seamless data migration and makes it easier to manage the application of advanced features.
Storage Virtualization can be implemented either on a host or on the primary controller for storage. It can be used to store data in a block-based or file-based format. It can also be used in both SAN and NAS environments. This kind of virtualization is not to be confused with cloud storage. While it is similar in that both are used to virtualize storage but the former is carried out by an appliance whereas the latter is a form of virtualization which occurs on the internet.
There are a few differences between the two methods, but the main difference is that a cloud-based storage solution involves entrusting your data an outside company, and has to be able to pass rigorous cybersecurity certifications. On the other one hand the other hand, a virtual storage service is hosted on-premises, allowing you to determine who is able to access your data and applications. It is crucial to understand the difference between these two options so that you can make an educated choice about the best storage solutions for your data.
http://dataroomonline.org/virtual-data-storage-solutions-pros-and-cons/