company, where virtualization of physical servers
is used. Virtual server backup can be achieved by
using special software or by manual
techniques, and may involve such options,
as bare metal virtual server backup or
protection by utilizing virtual server image.
Virtual Server Backup
But first of all
But first of all, it is important to explain what actually virtual machine backup is. A virtual server or machine is a logical environment residing on a physical server. The difference between virtual and real machine is not recognized by a user, because virtual machine is treated as a physical server. Hundreds or even thousands of virtual machines can be located running on a single hardware’s fracture in a data centre, so the issue of data protection and virtual machine backup is very important in order to avoid any failure. Data loss of a virtual server can have grave consequences, therefore each company has to include virtual machine backup in its IT protection policy.
Most popular way
The most popular way to perform virtual server backup is to accomplish it using special software, which provides continuous virtual machine backup and an ability to recover it from a virtual server image. The conventional software eases the process of virtual server backup, as it simply installed and set up and provides normal running of a virtual server image to a predetermined backup target. The backup software specifies the targets to save virtual machine image, such as virtual tape libraries, hard drive storages or tape drives, ensuring granular recovery of the virtual server image when needed.There are some disadvantages of applying regular backup software to virtual server backup performance. Virtual server backup requires considerable power to process it, what may cause a resource contention problem. In order to avoid a problem with contention, it is preferable to execute virtual machine backup, when only one machine is being backed up at once. Leaving some servers resources unused during virtual server backup process may economize them and compromise the virtual machines performance.The virtual machine backup process may turn to be pretty expensive, if you install virtual server backup software on every virtual machine. Common backup software do not copy the entire virtual machine image, it only captures applications and programs. All kinds of project management news and headlines from around the web.
