Category: Reviews

New version of “Opvizor Performance Analyzer” has been released by Opvizor team. Opvizor Performance Analyzer is a real-time performance analyzer and designed to finding performance issues and bottlenecks in your virtual farm. Opvizor has provided a fully customized dashboard to real-time monitoring for VMs, hosts and … . Opvizor Performance Analyzer supporting: VMware vSphere, VMware vCenter Appliance (VCSA), Microsoft Hyper-V, NetApp Docker, Linux and Windows Guests, Datacore, Microsoft SQL many more… You can find more information and download it from this link: Download Trial Version

I want to clear some misunderstanding in this post by some explanations about NUMA technology in physical and virtual machines. As first step, join me to review UMA technology: Uniform memory access (UMA) is a shared memory architecture used in parallel computers. All the processors in the UMA model share the physical memory uniformly. In a UMA architecture, access time to a memory location is independent of which processor makes the request or which memory chip contains the transferred data. Uniform memory access computer architectures are often contrasted with non-uniform memory access (NUMA) architectures. In the UMA architecture, each processor may use a private cache. Peripherals are also shared in some fashion. The UMA model is suitable for general purpose and time sharing applications by multiple users. It can be used to speed up the execution of a single large program in time-critical applications NUMA technology: Non-Uniform Memory Access (NUMA) is a computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to a processor. Under NUMA, a processor can access its own local memory faster than non-local memory, that is, memory local to another processor or memory shared between processors. Now what...

Windows 93 has been released now! This is real and you can test the OS that never was. Windows 93 is available on: www.windows93.net This is web based and you can test its application and have some fun.

MaruOS is a Linux desktop distribution that it can convert your Nexus phone to a desktop computer. MaruOS is created from Debian sources and it’s supporting wide range of applications such as LibreOffice. You have too accept the risk of installing another OS on your cell phone but then you have portable powerful desktop. You need to have a micro-USB to HDMI converter for screen connectivity. Keyboard and mouse will be connected to smart phone via Bluetooth. You can download this OS from this link: https://github.com/maruos/maruos/releases

HPE iLO standalone remote console client is a .Net application that you can download it from HPE iLO page. When you logon to iLO web administration page, you can access to this client but HPE iLO standalone remote console client can get your credential and works without opening iLO web administration. This is useful for administrators that they don’t want give iLO access to normal users and they can create usernames with remote console access. The console will operating according to your iLO license!

Microsoft has released a document for tuning Windows Server 2012 R2 and the document is including Hyper-V tuning recommendations. I suggest that download the document if you have Hyper-V in your virtualization farm. Here is the download link: Performance Tuning Guidelines for Windows Server 2012 R2  

This is a concept that Linux administrators are familiar with that because it’s born in Unix-Like operating systems. That is not new technology, and this method is older than most of us. What is “Operating System-Level Virtualization”? This technology as an advanced implementation of the standard chroot mechanism. Operating-system-level virtualization is a server-virtualization method where the kernel of an operating system allows for multiple isolated user-space instances, instead of just one. Such instances, which are sometimes called containers and software containers. Operating-system-level virtualization is commonly used in virtual hosting environments, where it is useful for securely allocating finite hardware resources amongst a large number of mutually-distrusting users. System administrators may also use it, to a lesser extent, for consolidating server hardware by moving services on separate hosts into containers on the one server. Other typical scenarios include separating several applications to separate containers for improved security, hardware independence, and added resource management features. The improved security provided by the use of a chroot mechanism, however, is nowhere near ironclad. Operating-system-level virtualization implementations capable of live migration can also be used for dynamic load balancing of containers between nodes in a cluster. Operating-system-level virtualization usually imposes little to no overhead, because...