Tag Archives: VMware

OpenStack – a cloud management platform

OpenStack vs VMware

OpenStack is a cloud management platform which allows users to create virtual machines according to physical criteria (number of CPUs, amount of memory, disk storage etc.) and a base image that can provide the operating system and the most suitable software. It also has features volume demand (such as Amazon EBS) via Cinder (block storage), network on demand via quantum of cloud storage mode via Swift (a scalable redundant storage system).


As we all know OpenStack is based solely on open source tools: Linux, Libvirt, QEMU / KVM and is written in Python. It meets many standards ovf (open virtual machine format), qcow2 (to create a snapshot of existing files), EC2 or S3, and specific APIs (Nova). read more

What is Enterprise Cloud and Its Benefits to Enterprises?

I know that when I ask the question “What is Enterprise Cloud” some people might scoff. A fact that, all the cloud infrastructures and cloud service providers vary in various things and not all the methods can offer the same value as expected by the IT industry. Within the cloud arena, most of the people are aware of only three clouds – Public, Private and Hybrid which are well established. However, a new model known as “Enterprise Cloud” has taken place in the cloud arena.

Enterprise Cloud Hosting is much similar to the Private and Public clouds and offers the same advantages in terms of greater flexibility, instant provisioning of computing power as well as a virtualized and fully scalable environment. The same “private access” is provided by an Enterprise Cloud as you would get in a private cloud. These enterprise clouds are either controlled by an organization or a group of businesses. Similar to other deployment models of cloud, the services in the Enterprise cloud are delivered over the Internet, thus eliminating the need to buy hardware. The commercial grade components usually offer the usability, more features and greater uptime required by an organization. read more

No Cloud Without Virtualization – Benefits of Virtualization with Cloud Computing to Businesses

Cloud Hosting

Benefits of a Well Planned Virtualization with Cloud Computing for Businesses

One of the biggest challenges the IT departments are facing today is to keep up their work environment. This is due to the need to maintain the IT infrastructure to be able to meet the current demand for services and applications, and also to ensure that in the critical situations of the company they are able to resume normal activities quickly. And here is where the big problem appears.

Many of the IT departments are working on their physical limit, logical and economical. Their budget is very small and grows on average of 1% a year, while managing the complexity grows at an exponential rate. IT has been viewed as a real cost center and not as an investment, as I have observed in most of the companies. read more

VMware vSphere 5 Licensing and Virtual RAM Limitation

Vmware’s new vSphere 5 licensing model and pricing will upset some users, because it is going to change the machine sizing rules. The new structure of licensing and limitation is not based on the physical CPUs and physical RAM per server, it is actually based on per CPU with a limitation on vRAM per license for specific version of vSphere.

Memory limitation and prices for each vSphere edition are:

  • Standard Edition: 24GB per $995 license
  • Enterprise Edition: 32 GB per $2,875 per license
  • Enterprise Plus: 48 GB per $3,495 per license

Means that, you can only share VRAM capacity among licensed servers according to the edition of vSphere. However, VMware calls this memory of law as a soft limitation. On the other side, you are able to use more memory than licensed in the VRAM pool as it will not prevent you from powering on your virtual machines (VM). read more

Virtuozzo vs VMware

The word “virtualization” is similarly related with two biggest name Virtuzzo and Vmware, although so many differences about features and functionality are present in these two solutions. Now we discuss about their differences.

Flexibility :
The level of virtual server creation is a main difference between Virtuozzo and VMware. In case of VMware, it create different virtual servers directly with hardware on the another side  Virtuozzo create different virtual server at the operating system (OS) level. With virtuozzo solution every virtual server run on common physical hardware which have to use single common operating system. That’s why there is a limitation on overall  functionality. On the another side VMware does not face these kind of issues, because it creates virtual server at hardware level. So, administrators can use their favorite operating systems. The great thing is that, VMware permits users to use different flavors of Windows and also Linux to operate in harmony on a common host.
As we previously discussed that, VMware creates virtual server with hardware level so, it can offer virtual memory to users. Virtual memory is a very useful thing, it permits users to utilize free disk space as temporary storage for whichever applications run out of physical memory or RAM. It also develops the stability and performance level of the system tremendously. On the other side Virtuozzo can provide single operating system to all virtual server and virtual memory is not present. If users have additional disk storage on their server then the whole disk work as a  virtual memory. read more