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You are here: Home » Storage Virtualization – What it is, How it Works

By Abhishek Ghosh September 29, 2011 11:45 pm Updated on September 29, 2011

Storage Virtualization – What it is, How it Works

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Storage Virtualization is a type of virtualization where multiple devices are attached storage to network, in what appears to be a single storage unit. This is the definition of storage virtualization, but it needs some explanation in brief with examples to make a normal reader understand, how storage virtualization basically works.

Storage Virtualization often used in storage networks, a high-speed subnetwork of shared storage devices and it backup and restore the data more quickly and easily. Storage virtualization generally implemented via software and it can provide storage which can be accessed by SAS and other methods. Originally, the flexible Mapping of physical drives to logical volumes was meant by Storage virtualization, So anything other than the RAID technology with flexible partitioning can act as storage virtualization system.

 

Basic operation of Storage Virtualization

 

Storage virtualization helps to achieve location independent storage of data. The virtualization technology gives the user a space for storing data. The virtualization software uses the metadata to redirect the requirements of input-output (I/O).

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Storage Virtualization creates a layer of abstraction between the logical view that is the host of storage and physical storage. It takes the advantage of SAN connectivity for access to all storage resources and isolate the host.

 

Features of storage virtualization

 

Storage virtualization provides various features. Not every brand offers every feature and provides the specific feature under varied circumstances. In brief, with storage virtualization, we get :

 

  • Vertical Scalability / Horizontal Scalability / Load Balancing
  • Thin provisioning or over-provisioning
  • Replication / mirroring to increase availability

 

Advantages and disadvantages of Storage Virtualization

Storage Virtualization - What it is, How it Works
One clear disadvantage of storage virtualization is the availability of solutions. A failure usually leads to failure of the entire storage solution. Thus, the virtualization designed for high availability. This increases the costs. But, this in turn creates a good point! It becomes highly available.

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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Orthopaedic Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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About This Article

Cite this article as: Abhishek Ghosh, "Storage Virtualization – What it is, How it Works," in The Customize Windows, September 29, 2011, April 15, 2021, https://thecustomizewindows.com/2011/09/storage-virtualization-what-it-is-how-it-works/.

Source:The Customize Windows, JiMA.in

 

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