Precisely what is Storage Virtualization?

Storage virtualization abstracts physical disks and runs into a central pool of storage. This enables organizations to eliminate datacenter complexness, costs and overcrowded safe-keeping hardware. In addition, it provides for faster, more reliable access to important applications.

HPE storage virtualization causes this possible by creating a great abstraction level between the hardware of a physical disk or perhaps drive as well as the operating system that accesses this. This computer software layer skins the details with the disk or drive to achieve the illusion of the single monolithic disk you can use with existing application program. This allows for Quicker, more frequent access to info and increased performance without the need of the pay for of additional hardware.

There are several different kinds of storage virtualization, including network based (SAN) and block-based (FC/iSCSI/SATA) virtualization. The most common form is network primarily based which utilizes a smart switch or purpose-built unit to connect to everyone the storage space devices within an FC or iSCSI SAN and signifies them to be a single digital pool of storage to each host.

When implemented correctly, a storage manager can change the place of the reasonable disk which a host is using by simply remapping the mapping of exactly where the meta-data resides at the underlying physical storage device. However , the granularity in the mapping can easily limit how quickly the logical disk could be remapped and how much extra space will need to be offered before the past logical storage can be huge as free of charge. Also, most implementations need that back out of a safe-keeping virtualization environment be done in a non-disruptive fashion which requires that the mapping granularity is certainly small enough to allow for this.