Why is backing up virtual machines so challenging?
There are a number of factors that make backing up virtual machines so challenging. With a physical server backup, you only have to worry about backing up the server’s contents. With a virtual machine backup, you must still back up the virtual server’s contents, but you may also need to back up the virtual machine’s configuration as well.
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
Another factor that can make virtual machines difficult to back up is that unlike a physical server, you can’t depend on a virtual machine to remain in the same location. Mechanisms like vMotion and live migration allow virtual machines to be moved from one host to another on an as-needed basis.
The often temporary nature of virtual machines can also make them difficult to back up. Virtual machines are rapidly deployed and can be deleted just as quickly. As such, the collection of virtual machines that you need to back up today might be different from what needs to be backed up tomorrow.
Hardware compatibility can also be an issue. Smaller organizations might want to attach a backup device directly to a host server, but virtual machines are often unable to directly communicate with local backup hardware. Finally, because multiple virtual machines can run on a single physical server, resource consumption can be an issue when performing a backup.
Dig Deeper on Backup for virtual servers
Related Q&A from Brien Posey
There are several things that could cause the active window to lose focus in Windows 10, but check device drivers first.continue reading
Making room on your SSD, checking running processes in Task Manager and using Performance Monitor are all ways you can improve Windows 10 performance.continue reading
Browser malware can make it impossible to access websites you might need for work. Luckily, there's a simple way IT and end users can get rid of ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.