Comparative analysis of Rhev Desktop virtualization and server virtualization

Red Hat Enterprise virtualization platform Rhev supports both server virtualization and desktop virtualization, and in practice it is difficult to discern the difference between the two, and this article attempts to analyze the differences between them:

Common:

Both desktop virtualization and server virtualization require virtualization-based technology

Difference points:

1. Data storage for desktop virtualization

Desktop virtualization is based on the same image, so when you publish, you only need to modify the public image to complete the update of all virtual machines.

The user's virtual machine stores a disk that holds the public image and the user's differential data, saving space.

I remember Rhev's desktop virtualization can store user differential data on Thin-provision's public disk with Thin-provision.

That is, if you set the virtual machine image storage space is 10G, then installed the operating system actually consumes storage space of 2G, the user in this occupy 2G space on the basis of the public disk storage with the difference of data.

However, server virtualization is not based on a storage image, so storage uses more disk space and is more independent.

2. Desktop virtualization is more dense than server virtualization

In general, servers run more desktops than virtual machines, mainly because they are also based on public images.

3. Desktop Virtualization Applications

Desktop Virtualization application is the most important level, because not all the software installed on the public disk, then the user to use the application is a problem, using the network to download and install is a rather stupid thing.

So app push is a key part of desktop virtualization. The current location Rhev is not able to do desktop push, so people feel that there is no difference between virtualization.

4. Remote protocol for desktop virtualization

Traditional management desktops need to enable the RDP protocol or other management protocols to display the desktop. However, these protocol compression is poor, so in the case of limited bandwidth, there is a problem with the display effect.

Desktop virtualization now uses a new design of desktop protocols, which are well-designed protocols that compress the information on the desktop, make the picture richer when restored locally, and provide a better user experience, while the desktop can be accessed using a browser, making the "thin client + cloud" possible.

This article is from the "Divinity New Space" blog, please make sure to keep this source http://abool.blog.51cto.com/8355508/1586550

Comparative analysis of Rhev Desktop virtualization and server virtualization