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Backing up virtual servers: Traditional apps and new tools
This article is part of the Storage magazine issue of Vol. 10 Num. 5 July 2011
Most IT shops are still relying on traditional backup apps with their server clients to back up virtual servers, but that approach has its limitations. Today, there are plenty of good alternatives for virtual machine backup. In most IT shops, virtual servers are backed up just like physical servers at first, but as the number of virtual servers increases traditional backup methods start breaking down. The fact that a single physical machine can host many virtual machines (VMs) poses challenges that simply don't exist when backing up dedicated physical servers. With multiple VMs competing for processing, storage and networking resources, contention for those resources is the No. 1 challenge of virtual server data protection. Concurrent backup jobs on multiple virtual machines can seriously impact the performance of applications hosted on those VMs. And when traditional backup methods are used to protect virtual servers, some key capabilities are sacrificed, such as application-consistent data protection and the ability to restore...
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Features in this issue
Most IT shops rely on traditional backup apps with their server clients to back up virtual servers, but that tactic has limitations. There are alternatives for VM backup.
Don't let capacity concerns or virtualized servers bog down the performance of your storage systems. Here are 10 ways to pump up the performance of your storage arrays and networks
It costs a lot and still has limited capacities, but solid-state storage use continues to grow. Our survey shows where storage shops are using the technology.
Private storage clouds might seem like a rehash of old technology, but there are major potential benefits once you cut through the hype. Here's what you need to know to get started
Columns in this issue
Data storage vendors may want you to think it's all about hardware, but when the storage revolution comes, that won't be the main story.
With all the talk about cloud and big data, it’s hard to tell which comes first; but it just might be a cloud foundation that enables big data applications.
We’ve been backing up our data the same way for decades, but proliferating applications and massive amounts of data are forcing a change.
Disk and tape-based technologies can and should be used in concert to meet the spectrum of data protection requirements.