Question

1. Explain the purpose of resource pooling in regards to cloud computing.

2.When data is uploaded to a cloud service provider's infrastructure, it is often said the organization loses physical control over their data. Explain how this is not entirely true.

3. Select the cloud technology that best fits the following scenario. A VM is allocated 8GB of memory and averages 3 to 4GB of memory utilization. Another VM is started and needs an additional 4GB of memory. The hypervisor is able to take the unused 4GB from the first VM and allocate it to the second VM.

Answer 1

1.
The purpose of resource pooling in regards to cloud computing:

• According to consumer's demand, ‘The provider’s computing resources are managed for providing services to multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned.
• Customer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction which concludes that customer have location independence.(e.g., country, state, or datacenter).
• Examples of resources include storage, processing, memory, and network bandwidth.

2.
This is not entirely true that When data is uploaded to a cloud service provider's infrastructure, the organization loses physical control over their data.

• Some systems managers still believe the promise of cloud computing exceeds the technological reality.
• They refer the Qualities such as:

1. security,
2. customizability,
3. longevity,
4. quality,
5. reliability and others.

as being key inhibitors to adoption and valid causes for corporate hesitation.

• In my opinion, the elephant in the room is really the loss of control that happens when ICT becomes cloud-based and widely accessible to the public.
• Giving up direct control has to be one of the hardest things corporate managers have to do (or more correctly to re-do).   

The basic premise seems to be that if it’s under your control, then nothing much can go wrong!

Is the loss of cloud control a valid fear?

We will examine WHAT we are trying to control.
Four types come to mind:

1. Control over data
2. Control over functionality
3. Control over assets
4. Control over access

There are other things that need to be considered,

We can examine HOW a user can control a cloud ecosystem.
Several levels of control could be considered:

1. Executive control (governance)
2. Financial control
3. Solution control
4. Operational control

• It does highlight some of the areas that Information and Technology managers need to consider.
• In essence, the debate needs to change from simply “we’ve lost control” to how best to share the controls among the different stakeholders while maintaining strong oversight.
• Perhaps one of the most important controls, from the user perspective, is simply having control over "who your suppliers are!"

3.
There are six methodologies to look at when talking about virtualization techniques in cloud computing:

1. Network Virtualization
2. Storage Virtualizing
3. Server Virtualization
4. Data Virtualization
5. Desktop Virtualizing
6. Application Virtualization

The cloud technology that best fits the following scenario is Storage Virtualizing in Cloud Computing.

• This technique gives the user an ability to pool the hardware storage space from several interconnected storage devices into a simulated single storage device which is managed from one single console.
• This storage technique is often used in storage area networks.

Storage manipulation in the cloud is mostly used for

1. Backup,
2. Archiving, and
3. Recovering

of data by hiding the real and physical complex storage architecture.

• Administrators can implement it with software applications or by employing hardware and software hybrid appliances.