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Choosing the Right Cloud Computing
Model for Data Center Management
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Section One
Cloud Computing 101
SummaryThe focus has broadened from the traditional on-premise data centers we are all familiar with to models that include cloud computing which support customers with forward-thinking technology.
Cloud computing models have the capacity to drive businesses through
the twenty-first century thanks to their adaptability. Private cloud
combines the benefits of public cloud with the security and privacy
of an on-premise deployment. Public cloud’s managed services keep
customers connected at a lower capital cost with the added benefit of
a pay-as-you-go model while absorbing spiking workloads. The hybrid
model allows businesses to take advantage of both private and public
cloud services.
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Recent innovations in the data center have rapidly provided increased flexibility of choice that was not available until a
few years ago.
The National Institute of Standards and Technology (NIST) defines Cloud
Computing as:
“…a model for enabling ubiquitous, convenient, on-demand network
access to a shared pool of configurable computing resources (e.g.,
networks, servers, storage, applications, and services) that can be rapidly
provisioned and released with minimal management effort or service
provider interaction. This cloud model is composed of five essential
characteristics, three service models, and four deployment models.”
Our definition focuses more on the overall evolution of the data
center. Cloud computing uses software to run applications
that create an abstraction layer between the hardware and
application. This abstraction creates shared containers of
resources that run databases, web pages, files, and other
infrastructure services. These containers can then be used
along with development teams to create, test, and deploy
standalone applications.
Cloud Data Centers (CDC) became the twenty-first century addition to on-premise system technologies.
What is Cloud Computing?
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The NIST definition lists five essential characteristics of cloud computing:
- On-Demand Self-Service
- Broad Network Access
- Resource Pooling
- Rapid Elasticity or Expansion
- Measured Service NSI offers a range of services for all major cloud computing models,
including Private, Public, Hybrid, and PCaaS
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Section Two
Accessing the Cloud
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The three key cloud computing models each offer different benefits and constraints that should be considered when selecting a cloud strategy. Additionally, Private Cloud as a Service (PCaaS) is a growing trend that serves as a gateway between private and public clouds.
Private Cloud The private dedicated model is an on-premise deployment that
leverages the full feature-set of the public cloud. It’s typically hosted
on a company’s intranet or private data center servers with hypervisors
like VMware. With this model, customers
access exclusive resource pools operated by
internal IT staff.
A private cloud offers direct control and
suits customers with regulatory limits and
special requirements. From a financial
perspective, the private cloud often fits a
capital expense (CAPEX) spending model,
while public cloud is often a good fit
within an operational expense (OPEX)
spending model.
PROS:+ Security
+ Greater control of server(s)
+ Fully compliant
CONS: - Higher initial costs
- Limited remote access
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Public cloud, or IaaS, is owned and operated by a third-party who handles
infrastructure, data storage, and security. This converts the cost to an
operational expense, with predictable ownership costs and fixed per-use
payments. Customers can leverage cost-
effective IaaS providers
like Amazon Web Services (AWS),
Microsoft Azure, or any number of
regional players.
The public cloud solution is
best for businesses that prefer
fixed monthly costs and flexible
hosting options. It may not be ideal
for customers with strict compliance
regulations. This model can also work
for noncritical web servers, compute-
heavy research applications, or development
and test environments.
Public Cloud
PROS:+ Fixed operational costs
+ Provider liable for upkeep and security
+ Remotely accessible
+ Flexible hosting options
CONS: - Regulatory and
compliance challenges
- Higher Total Cost of Ownership (TCO)
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The hybrid cloud combines private cloud and public cloud solutions.
By keeping a company’s key infrastructure private, hybrid/private cloud
maximizes spending efficiency by allowing organizations to leverage
public cloud resources on
an as-needed basis while
maintaining compliance and
keeping OPEX costs lower with
the on-prem solutions. Companies
can pick and choose which applications
to deploy into the public cloud and which
to maintain on their own network.
This gives companies the flexible
features of the cloud while
ensuring they meet compliance
regulations. It can also work
well for companies that have
no regulatory issues with using
cloud services. A hybrid cloud
solution allows for more seamless
integration between private and
public cloud technologies.
Services can be customized based on unique needs and managed
by internal IT staff or outsourced. Hybrid cloud customers often
wish to add to resources they can’t buy outright and utilize the
cloud’s shared resource pool.
Hybrid Cloud (Private Cloud Shared)
PROS:+ Security and compliance
+ Organizational agility
+ Cloud resource accessibility
CONS: - Reliance on integrations
- Cloud and on-premise team compatibility
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PCaaS is a growing trend among organizations looking to take a step
toward public cloud without incurring the OPEX costs associated with
public cloud consumption. The service is built into a regional colocation
facility and allows an organization to share services such as network,
storage, and security. To differentiate from the
public cloud model, computing is generally not
an option. Instead, servers are moved into the
provider racks, keeping the private cloud model
of direct infrastructure and
hypervisor access.
Storage, network, and security
shared services are all optional
for the PCaaS customer, allowing
for intelligent consumption of resources to
best fit current equipment ownership and
budget allocations. It also allows for a phased
approach to cloud consumption – for example,
when an existing storage array reaches end-of-life, the storage model
can move to shared resources rather than replacing the array.
Private Cloud as a Service (PCaaS)
PROS:+ Bridges gap between private
and public cloud
+ Leverages existing hardware
+ Mix of CAPEX and OPEX spending models
CONS: - Requires ownership
of equipment
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Section Three
Why Choose Cloud?
Security in the CloudCloud computing has redefined the data center. More mobile users mean workloads, applications, and data are now accessible across multiple platforms.
Today’s data centers are incredibly complex. Businesses need to rethink
their cybersecurity strategies. Inactive or incomplete security measures
can have disastrous results. Understanding kill-chain methodology is
crucial to developing an information security strategy that mitigates risk.
By combining North-South and East-West security, companies layer a kill-chain
system on top of their hardware. North-South creates a firewall between
the data center and users, while East-West secures and segments
traffic down to the endpoint. It is best implemented
within a software-defined infrastructure.
Most cloud providers will offer
North-South security, but few take
the extra steps, cost, and expertise
to add East-West technologies.
For those that allow East-West
security, the complicate configuration
often falls within the end-
customer’s responsibility.
Preventative maintenance is one other important aspect of cybersecurity.Infrastructure lifecycle data can track the depreciation and replacement
costs of data center equipment. This strategy prevents companies from
losing valuable resources to an unstable environment.
Operating with a software-defined infrastructure has another advantage
when it comes to security: proactive analytics.
Proactive analytics give organizations a 360-degree view of what is
happening between network applications and users with historical, real-
time, and predictive capabilities. This comprehensive data drastically
reduces IT resources spent on troubleshooting across wired and
wireless environments.
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Before debating the best cloud model choice, companies should consider the overall benefits of cloud computing.
1. Best use of resources for budget
Before adopting a cloud model, consider how much can be saved by
automating manual tasks. On-premise upkeep may be out of a small
business’s budget but work better for a large company with their own
gear. No matter the budget or resources, cloud models can be tailored
for maximum benefit to the organization’s particular circumstances.
2. Up-to-date technology and hardware
Cloud computing keeps customers updated and helps them function
without relying on outdated gear. They move company information workflow
past a decade-old virtualization implementation to upgraded technologies.
3. Flexible accommodation and extensions
Cloud models accommodate all needs and levels of ownership and
regulation or security concerns. They are flexible enough for customers
who prefer to control their entire workflow, those who would rather
outsource management, and everything in between.
4. “Future-proof” environment
Cloud models supply customers with a flexible environment of
adaptable and evolving technologies. They guarantee access to new tech
that empowers businesses to look ahead, not worry about future updates.
Reasons for Adopting
a Cloud Model
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Early data center technology focused on results over user experience. Cloud levels the playing field for many
organizations. Adaptable to a range of skill levels and requirements, it appeals to small businesses and
large corporations alike.
Cloud computing models make industry-leading technology
accessible to all. Weighing the benefits of each cloud model vs. an organization’s preference for a CAPEX or
OPEX spending model will help decide which model is appropriate.
Interested in learning more about your
cloud computing options? Contact an NSI
representative today. Let us help you decide
how Cisco Systems can help you effectively
manage your data center.
(888) 247-0900
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Why NSI?Since 1989, Network Solutions, Inc. (NSI) has focused on providing stable
and secure network communication solutions to customers in the Midwest.
As a cloud-enablement brand, NSI offers enterprise-grade solutions at cost-effective pricing, supporting businesses of all sizes with the option to consume solutions on a monthly or per-use basis.
Combining white glove service with cloud deployment, colocation, and
multi-cloud options, Network Solutions is a full-stack cloud provider.
Offering expertise in on-premise solutions, cloud migrations, and hybrid
deployments, NSI is a one-stop, end-to-end shop for secure and flexible
cloud solutions.
In partnership with Cisco Systems, NSI uses multi-cloud solutions to
connect customers’ on-premise hardware to the cloud and beyond.
Key areas of expertise include design, implementation, and support of
traditional or managed services encompassing enterprise networking
and infrastructure, data security, collaboration technologies, and data
center solutions.
Network Solutions excels by remaining true to its core values, to Honor
God with our work, provide extraordinary customer experience, foster
teamwork, and provide customers with strategic vision.
WHY we do is as important as WHAT we do.
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www.nsi1.com
About NSINetwork Solutions, Inc. specializes in creating positive business outcomes by
implementing empowering technology solutions. What we do is very important
but WHY we do it is just as critical. Designing and deploying the solutions,
for the right situation, at the right time, improve organizational employee
productivity, reduce expenditures, improve time to market and reduced risk.
Key areas of expertise include design, implementation, and support of
traditional or managed services encompassing enterprise networking and
infrastructure, data security, and managed services.