Today we bring over an interesting article written by Larry Smith in which he reports his experience building a home-made NAS for VMware’s vSphere hypervisor.
He had been using so far Nexenta 3.x but, as he had to move to 4.x, the possibility of running a GlusterFS cluster using the two NAS servers that he used for Nexenta was called into question. Learn all the details reading this article.
Many companies and governments around the world already use Open Source software. This alternative to proprietary software has some obvious advantages from the economic point of view. But, you can get much more out of it. To do this, it is recommended to have a technology partner involved in Open Source developments, having staff with experience in this area and training the employees who will manage the project.
It is also important to carry out our developments without modifying the source code, so that we will always be able to count on the support of the community and we will be able to implement the improvements that are introduced.
For more information, have a look at this article that introduces some interesting tips:
The data, documents and application configurations of the user are saved in the user profile when the user is working with a Windows desktop. Different information is stored in the user profile, such as:
-Desktop appearance, desktop background, themes, screen configuration, use of Aero in Windows 7, etc.
-Application configuration, navigator preferences, tool bars, office software tool configurations, etc.
-Documents. These documents are stored in the “My documents” folder of the user profile.
Today we bring you an interesting article that explains how to clean up snapshot files to free disk space in VMware server. This tip may result very useful for those who are looking for a way to recover some virtual hard disk space and are frustrated with how much space the virtual machines demand.
The expert Andrew Kutz offers some ideas for removing a snapshot chain in VMware Server: VMware Server how-to: Clean up snapshot files to free disk space
In some cases, when analyzing the storage needs for a VDI platform we look at saving disk space when using template-based or non-persistent desktops. Nevertheless, it is necessary to bear in mind that all the I/O operations on disc in a standard job platform are made on local discs located in each post.
In a VDI environment, all these I/O operations take place concurrently on shared storage. Tasks such as updates of OS patches, antivirus, user logins scans… produce a large amount of concurrent I/O operations that are referred to as “storms”. These storms produce a deterioration in the performance of the storage because these I/O operations are accumulated in queues and this, obviously, causes an irregular performance of the virtual desktops.
At the end of a class, each student has changed many aspects of virtual machines (VM). In order to prepare them for the next class, it is important to be able to return them to its original state as soon as possible. The Logical Volume Manager snapshots are useful in these cases.
The Logical Volume Manager (LVM) is a method that has been used successfully on Linux for many years and managing storage in a flexible way. Instead of working with fixed storage allocation units, LVM work with versatile volumes that can be extended or reduced very easily. These volumes offer also other benefits, like the snapshots.
