Deployment Models in Cloud Computing, Slides of Introduction to Computing

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⚫ This refers to the location and

management of the infrastructure.

⚫ There are four deployment models.

◦ Private Cloud

◦ Community Cloud

◦ Public Cloud

◦ Hybrid Cloud

◦ The cloud infrastructure is operated solely for

an organization.

◦ It may be managed by the organization or a

third party

◦ It may exist on premise or off premise.

⚫ For example, for the healthcare and pharmaceutical industries, moving data to the cloud may violate the norms. ⚫ Different countries have different laws and regulations for managing and handling data, which can obstruct the business if cloud is under different jurisdiction. ⚫ Several SaaS applications, such as SugarCRM, provide options to their clients to maintain their data on their own premises to ensure data privacy is maintained according to the requirements of the particular business. ⚫ Amazon also provides the option of a virtual private cloud.

Cloud

⚫ The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services.

◦ The cloud infrastructure is shared by several

organizations and supports a specific

community that has shared concerns (e.g.,

mission, security requirements, policy, and

compliance considerations).

◦ It may be managed by the organizations or a

third party.

Community Cloud

⚫ Cloud infrastructure is shared by several

organizations with the same policy and

compliance considerations.

⚫ This helps to further reduce costs as compared

to a private cloud, as it is shared by larger group.

⚫ Various state-level government departments

requiring access to the same data relating to the

local population or information related to

infrastructure, such as hospitals, roads, electrical

stations, etc., can utilize a community cloud to

manage applications and data.

COMMUNITY cloud

⚫ This deployment model helps businesses to take

advantage of secured applications and data hosting on a

private cloud, while still enjoying scalability and cost

benefits by keeping shared data and applications on the

public cloud.

⚫ For migrating workloads between public and private

hosting without any inconvenience to the users.

⚫ For example, an organization might use a public cloud service, Amazon S3 for archived data but continue to maintain in-house storage for operational customer data.

Pros

⚫ Security

⚫ Control and flexibility

⚫ Agile

Cons

⚫ Costly

⚫ Time resources

Pros and Cons of Private Cloud