The virtual machine (VM), which is a computer program requires storage to store its data. Virtual storage can be utilized to improve the performance of a VM by showing a single physical device or network-based storage in multiple types. Then the VM can access it without knowing the underlying hardware.
Virtual storage management requires the careful balance of performance, capacity and cost. Administrators must determine whether to make use of all solid-state disks or hard-drive disks, what kind and number of storage controllers to install; and how to combine them in a hybrid configuration. To control expenses, IT managers should look at storage reduction options such as deduplication and compression.
There are three kinds of virtual storage: physical disks RAID groups, and logical volumes (LV). Physical disks and Raid group divide physical capacity into smaller units, that applications or servers interpret to be a single storage device. A virtualization layer takes care of I/O requests from the server and then converts them into the correct physical disk.
The virtual storage model decreases the hardware-related overhead by dissociating operating systems from physical devices and by providing a single point of administration. It also permits scalability, as it automatically adjusts the physical capacity in order to meet the demands. It also lets administrators perform a variety of tasks in a non-disruptive manner like moving data from over-utilized devices. Data migration is one method that permits this to be done. In general, the mapping granularity determines how quickly the meta-data can be updated, how much additional space is required during the migration and how quickly the prior location can be designated as free.
https://duediligencedataroom.blog/important-considerations-to-make-when-choosing-business-software/
