Precisely what is Storage Virtualization?

Storage virtualization abstracts physical hard disk drives and devices into a centralized pool of storage. This permits organizations to relieve datacenter difficulty, costs and overcrowded storage space hardware. It also provides for more quickly, more reliable access to important applications.

HPE storage virtualization makes this possible simply by creating a great abstraction level between the components of a physical disk or perhaps drive plus the operating system that accesses that. This software layer hides the details of this disk or drive to achieve the illusion of your single monolithic disk that can be used with existing application software program. This allows for Quicker, more consistent access to data and advanced performance without the need of the obtain of more hardware.

There are lots of different forms of storage virtualization, including network based (SAN) and block-based (FC/iSCSI/SATA) virtualization. The most common form is definitely network founded which usually utilizes an intelligent switch or perhaps purpose-built unit to connect to all or any the safe-keeping devices in an FC or iSCSI SAN and presents them as being a single electronic pool of storage with each host.

When ever implemented correctly, a storage moderator can change the positioning of the reasonable disk which a host is usually using simply by remapping the mapping of where the meta-data resides on the underlying physical storage device. However , the granularity in the mapping may limit how quickly the rational disk could be remapped and how much extra space will need to be obtainable before the previous logical disc can be proclaimed as absolutely free. Also, the majority of implementations need that change your mind of a storage area virtualization environment be done within a non-disruptive method which needs that the mapping granularity can be small enough to allow for this.