The first choice for storage architecture includes software-defined products that are aligned, integrated and are usually part of the hypervisor stack. VMware Virtual SAN produces now, which is a layer of software that the company is calling defined storage software, which is part of their software stack. Hyper-V has what it calls Clustered Storage Spaces, and is written by Microsoft and is integrated directly into the stack of Hyper-V.
A second choice of storage architecture defined by software It includes products from third parties regarding the hypervisor agnostic, which can be used with VMware, Hyper-V, KVM or Citrix. It is -Maxta software products, StarWind Software and StoreMagic, for example performing the same functions, and in many cases better than, the leading provider of software-defined storage. They provide the same functionality, but are not dedicated to a particular hypervisor. The storage repository created could also be capable of being shared between different hypervisors.
The third option, the virtual storage has been around longer. This option includes products such as IBM Spectrum Virtualize (formerly SAN Volume Controller) or DataCore SANsymphony, that virtualize the entire capacity of a SAN hardware and software specialty put on the surface, a layer of software that can be allocated so more efficient. When you have a workload of applications that need storage for specific arrangements for the protection of data, you can only select the settings you need from the management interface and is assigned to the storage.
The choice of storage virtualization is probably the best way to implement storage architecture software-defined because it fits with most existing infrastructures. No need to use a configuration of direct-attached storage, as is done with the other; just build a storage pool and assign it to will.
These types of software-defined storage are different types, and cater to different needs. A storage administrator with a department only VMware and want a single provider controls everything, might be inclined to go with the particular virtual SAN for VMware. An administrator who wants to support a variety of hypervisors with a common infrastructure could choose the storage hypervisor agnostic or third option of virtual storage.
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