Virtual storage management is an essential component of any IT infrastructure. As opposed to physical hardware, which you can easily switch out devices and upgrade them to more efficient ones, this type of storage is more complicated and requires the right tools for management to get the most out of it.
The most effective way to deal with this complexity is through virtualization technology which lets you pool resources together to create a scalable storage solution that can handle more data. Virtualization is available on many platforms, such as network appliances, which offer centralized storage for your applications or virtualized storage software, which utilizes the hardware to provide the storage capacity of a pool.
For instance an appliance on the network can utilize physical Fibre Channel (FC) or iSCSI SAN to present a storage pool that appears to be one physical disk to the server or host. It is able to intercept input/output (I/O) requests and then forwards them to a different physical location on the storage pool without the server or host being aware of what’s going on behind the scenes. The mapping granularity determines how quickly meta-data is updated and how much storage space is needed during the process of migration, and also how fast the physical location of the previous one can become available.
Virtualized storage solutions also offer high availability by mirroring data between multiple servers. This ensures you won’t lose vital business information should one of your server nodes fails. The data will be automatically routed to other servers in the cluster.
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