Cloud 1.0.1for SMEs_

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Cloud Computing means to have

storage, resources or services

accessed through the Internet,

because they are not located

within the premises of my

organization.

CloudComputing_

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A backup where data is uploaded from

my premises to the cloud. It is a good

solution when the data or apps are not

speed or bandwidth dependent.

Creating off-premises backups is a

safe way to protect critical data

against disasters.

WeTransfer, Drive, Dropbox or OneDrive

are Cloud Backups apps/services.

CloudBackup_

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This service allows creating a work

environment where your

applications (email, documents,

other productivity apps…) can be

accessed anywhere, not only in your

office (or server).

Virtual Desktop adds availability,

flexibility and security.

DaaS (Virtual Desktop)_

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A contingency strategy for restoring

data where copies of your business

information are stored in the cloud.

It is a prevention measure that

allows restoring a backup if a

negative event happens.

DisasterRecovery_

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Elasticity is the capacity of my

system to adapt to changing

workloads in an autonomic

manner.

The cost in resources and

investment is thus closely

adjusted to requirements.

Elasticity_

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Hosting is the capacity of an

undetermined number of

machines to act as one system.

Another type of hosting is when

several systems are hosted on one

machine.

Most websites require third party

hosting services.

Hosting_

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A specific type of hosting where

physical space for servers is

rented out in a datacentre.

The datacentre provides a higher

degree of security, availability and

protected access to the customer.

Housing_

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A combination of public and

private clouds.

It offers the best of both worlds: the

possibility of storing data locally

and being able to scale to a public

cloud model.

Hybrid Cloud_

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IaaS (Infrastructure as a Service) is one of the three basic models of cloud computing along with PaaS (Platform) and SaaS (Software).

In this model IT infrastructure (hardware, storage and networking) is hosted and managed by the cloud vendor.

IaaS_

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Services that allow companies to

maximize cloud capabilities without

the need of having in-house cloud

experts.

Managed Cloud Services are brokered by

a service provider allowing companies to

focus 100% on their business.

Managed Cloud Services_

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An open cloud service or solution

uses open APIs and standards

(available for anyone).

It must allow portability between

cloud services and allow choosing

between different types of

infrastructure.

Open Cloud_

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Platform-as-a-Service (PaaS) is a cloud

service category that provides a

platform and an OS environment

allowing me to develop apps and

access other online solutions.

PaaS services are stored in the cloud

and users access through a browser.

PaaS_

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This billing method, also called

Pay-As-You-Go (PAYG), allows

companies to pay for the

computing and storage services

being used or allocated, instead of

the entire infrastructure that the

company may eventually need.

Pay as you use_

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A private cloud is any cloud resource

that is only accessible by the

company where it is deployed.

The company can benefit from the

advantages of cloud architecture, but it

is also a burden for the IT department, it

is more expensive to maintain and

slower to deploy than the public cloud.

Private Cloud_

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Public Cloud is a cloud service where IT

resources (servers, storage, applications)

are externally managed by a third

party service provider.

Its advantage is that it is quick to deploy,

scalable, and – in general – affordable.

However it is not exclusive to the

organization like a private cloud.

Public Cloud_

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Reliability in cloud computing is the

capacity of a service to remain online

and available over time.

It is normally measured through the

Mean Time Between Failures (MTBF)

rate measured in hours, calculated as an

average of a service’s uptime between

failures.

Reliability_

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It is a software deployment model

where a third party hosts the

applications providing online access to

end users.

These popular services can be accessed

through a browser, like Gmail, or through

software suites like Office 365.

SaaS_

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It is the capacity of the cloud system

to grow or shrink in capacity in order

to meet changing business needs.

One of the main advantages of cloud

computing is to be able to upscale

systems quickly and effortlessly as

demand changes over time.

Scalability_

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Virtual Servers on a Cloud

Platform where a client rents out

space and accesses remotely, in

contrast to physical servers.

What are the advantages?

Flexibility, scalability, security and

lower costs.

Cloud Servers_

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A Service Level Agreement (or SLA) is a

contract where the cloud provider

and the end user agree of the details

of the service provided in measurable

terms: availability, uptime, or

redundancy, among others.

This contract warrants the cloud service

provided.

SLA_

ºA virtual storage model where

data is stored, managed and

backed up by third parties.

The client accesses this data

remotely through the Internet.

Cloud Storage_

ºA centralised repository of cloud

infrastructure services (such as

storage, bandwidth, etc.) specifically

designed to meet business demands.

It is also called a Software-defined data

centre (or SDDC).

Virtual Data Centre_

ºA server that shares hardware and

software with other virtual servers,

opposed to dedicated servers. They are

a popular option for web hosting

because they provide resources quickly

and are cost-effective solutions.

Virtual Server_