We
know that the cloud provides computing resources for customers to use and these
resources are then charged at a monetary value accordingly.
Cloud providers deliver and manage services by using applications such as VMware's vCloud Director. These cloud applications provide benefits such as:
Many businesses are now using these advantages to move away from overinvestment in rigid, legacy-based technology and adopting cloud-based services which are highly scalable, technology-enabled computing consumed over a network on an as-needed basis.
Cloud Types
Cloud types provide the “computing as a service” model to help reduce IT costs and make your technology environment a responsive, agile, service-based system. These Cloud "types" or Service Delivery Models are commonly known as:
· Software as a Service (SaaS) - External Service Providers (ESP) such as Amazon can provide access to a specific software application, e.g. Business Mail Service Desk and charge as necessary. You would access this application via a "thin client" typically a web browser.
· Platform as a Service (PaaS) - This enables you to deploy supported applications into the Cloud with some degree of control over what environment settings are required. You do not have any control over the resources provided to host these applications.
· Infrastructure as a Service (IaaS) - This provides the ability to provision your own resources and you have full control over what operating systems, environment settings and applications are deployed. The cloud provider still retains full management and control over the infrastructure.
The Cloud or "Clouds" as we know them are categorized by location and ownership, typically referred to as Public / Private or Internal or External clouds. In addition there are Community and Hybrid clouds whereby a Community share the cloud and are bound by a common concern or interest and Hybrid where you have a composition of two or more Private or Public clouds. This allows for data and application portability between clouds to occur. VMware introduced the vApps functionality specifically for this.
Most organisations will tend to lean more towards having exclusive "Internal" cloud services and possibly "Hybrid" cloud services (a mixture of Public and Private clouds). You may find that critical or data sensitive applications are always kept within the organisation and in some cases Testing and Development applications are ported to the Public Cloud where it is more cost effective to do so. There may also be the use of SaaS within the organisation which would be external to the business.
Just to reiterate, Virtualization underpins Cloud Computing, through resource pooling and rapid elasticity and to avoid any confusion, I will be explaining the primary difference of say a Private or Internal Cloud over Virtualization on Friday.
In the meantime register for my next webinar 'Understanding Vmware Capacity' http://www.metron-athene.com/services/training/webinars/index.html
Jamie Baker
Principal Consultant
Cloud providers deliver and manage services by using applications such as VMware's vCloud Director. These cloud applications provide benefits such as:
·
Increased business agility by empowering users to deploy
pre-configured services or custom-built services with the click of a button
·
Maintaining security and control over a multi-tenant environment with
policy-based user controls and security technologies
·
Reducing costs by efficiently delivering resources
to internal organizations as virtual datacenters to increase consolidation and
simplify management
So,
to be considered a Cloud it must be:
·
On Demand - cloud aware applications can in
most cases automatically self provision resources for itself and release them
back as necessary.
·
Resource Pooling - freeing up unused resources
provides the ability to move these resources between different consumers’
workloads, thus quickly and effectively satisfying demand.
·
Rapid Elasticity - rapid means within seconds to
minutes (not in days). In a Virtual Cloud
Environment, to Scale Out or In would also cover the ability to provision new
ESX hosts, rather than just scale to new virtual machines.
Virtualization
technology encompasses these three requirements and underpins Cloud Computing.Many businesses are now using these advantages to move away from overinvestment in rigid, legacy-based technology and adopting cloud-based services which are highly scalable, technology-enabled computing consumed over a network on an as-needed basis.
Cloud Types
Cloud types provide the “computing as a service” model to help reduce IT costs and make your technology environment a responsive, agile, service-based system. These Cloud "types" or Service Delivery Models are commonly known as:
· Software as a Service (SaaS) - External Service Providers (ESP) such as Amazon can provide access to a specific software application, e.g. Business Mail Service Desk and charge as necessary. You would access this application via a "thin client" typically a web browser.
· Platform as a Service (PaaS) - This enables you to deploy supported applications into the Cloud with some degree of control over what environment settings are required. You do not have any control over the resources provided to host these applications.
· Infrastructure as a Service (IaaS) - This provides the ability to provision your own resources and you have full control over what operating systems, environment settings and applications are deployed. The cloud provider still retains full management and control over the infrastructure.
The Cloud or "Clouds" as we know them are categorized by location and ownership, typically referred to as Public / Private or Internal or External clouds. In addition there are Community and Hybrid clouds whereby a Community share the cloud and are bound by a common concern or interest and Hybrid where you have a composition of two or more Private or Public clouds. This allows for data and application portability between clouds to occur. VMware introduced the vApps functionality specifically for this.
Most organisations will tend to lean more towards having exclusive "Internal" cloud services and possibly "Hybrid" cloud services (a mixture of Public and Private clouds). You may find that critical or data sensitive applications are always kept within the organisation and in some cases Testing and Development applications are ported to the Public Cloud where it is more cost effective to do so. There may also be the use of SaaS within the organisation which would be external to the business.
Just to reiterate, Virtualization underpins Cloud Computing, through resource pooling and rapid elasticity and to avoid any confusion, I will be explaining the primary difference of say a Private or Internal Cloud over Virtualization on Friday.
In the meantime register for my next webinar 'Understanding Vmware Capacity' http://www.metron-athene.com/services/training/webinars/index.html
Jamie Baker
Principal Consultant
No comments:
Post a Comment