Cloud Computing Benefits
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Time
9 hours 59 minutes
Difficulty
Intermediate
CEU/CPE
10
Video Transcription
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>> Objectives for this video include understanding the role
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that abstraction and automation
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plays in Cloud computing,
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and then discussing the high-level benefits of Cloud.
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Let's start by expanding a little bit further on
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Cloud versus traditional virtualization,
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because Cloud isn't just a bunch of virtual machines.
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The abstraction separating the logical resources
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from the underlying physical infrastructure
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is a major point of Cloud.
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It allows us to create
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resource pools out of the underlying assets.
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The Cloud provider can then allocate those to
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the individual consumers or tenants,
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Cloud users within there.
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The automation and orchestration
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allows that to happen rapidly
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without requiring direct interaction
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of the Cloud provider.
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If you say you want a virtual machine,
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you don't have to call
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the Cloud provider and get one spin up.
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They provide you with automated mechanisms,
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which we'll talk about in more detail.
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You may already have been exposed to it,
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but this is a very important,
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what distinguishes Cloud from
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just a bunch of traditional virtual machines.
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The abstraction piece,
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using it to build the resource pool,
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and a lot of times,
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if we think about and look at
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the traditional down at the bottom,
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the abstraction's there,
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but you're still needing
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to call somebody when you want it,
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the self-service automation piece
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is minimal in the traditional models,
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and with Cloud, it's
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a real big cornerstone of the way things operate.
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What are some of the benefits of Cloud?
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We've really nailed home what it means,
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but how about benefits?
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Having that self-service capability,
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the orchestration, that automation,
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using a shared pool of resources, well,
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it provides agility to the Cloud user.
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You can expand in a public Cloud.
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You don't have to purchase new hardware.
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If you want to expand the amount of storage,
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the amount of servers, everything is software defined.
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This includes the networks,
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the machines, and so forth.
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That's really valuable when you
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start thinking about change management of
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your infrastructure itself and recreating
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an environment where you know that
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the content and the architecture of that environment,
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it matches other environments.
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Say you have a development environment,
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a QA environment,
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a production environment,
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and you then want to introduce
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a stage environment which
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really should mirror production.
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Well, how do you know that it's going to be right?
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Having that software infrastructure is a code,
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which by the way have a different class
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that you can find Terraform,
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which is one of the mechanisms to realize
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that is very valuable in that sense.
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Let's talk about resiliency as well,
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reducing downtime, disaster recovery.
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These are major benefits because the Cloud providers have
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those resources and they usually have the larger ones,
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especially multiple datacenters,
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multiple physical locations
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with these resources that are highly connected
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and have real low latency connections between the two.
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If there's a power outage in a building,
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or if there's a massive network outage
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on a whole side of the country,
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your resources can be redeployed
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or even automatically fail over into other areas.
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Some real just dramatic resiliency
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that you can put in place,
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and doing it in a traditional model would be very
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expensive for smaller companies,
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but even larger companies having to manage
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multiple datacenters across the globe,
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the costs to the employees,
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getting the hands on the ground
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can be a very costly proposition.
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This is something that Cloud
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brings innately with its design.
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The economics, being able to scale up and down
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quickly if you need a lot more storage or if you don't,
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because we have that resource pool and it's
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the Cloud providers making
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sure that their resource pool has
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capacity and you don't then have to spend
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capital and go out and invest
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your time managing the hardware elements of
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it to optimize resource utilization.
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I like to think of it as economically,
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it's a form of outsourcing.
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You are outsourcing the management of
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your physical infrastructure to these Cloud providers.
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Of course, if it's a private Cloud,
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you're not outsourcing it, you're managing it yourself.
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But even in that scenario,
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the details of that are being offloaded to
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an indifferent internal group that is
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responsible for managing that private Cloud.
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Then last but not least, security,
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which is the real tenants around
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the whole certification here in Cloud security.
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It has some real economic benefits for
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the Cloud provider themselves
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to keep security up and running.
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Obviously, that the physical layer,
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they need to make sure things are there.
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When you have the multiple tenants,
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you need to make sure that they're
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isolated and segregated so that they
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can't penetrate and get into even competitors,
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get into other tenants infrastructure and
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servers and provide any attacks or takeovers.
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They have a very big incentive to make sure
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that they're keeping their systems
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secure and their facilities secure at that layer.
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However, security is a shared responsibility,
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and we're going to hit on this again and
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again through the coming course materials,
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because as a Cloud user,
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there are certain elements and settings that
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you have and you control and you're responsible for.
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The Cloud provider is
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certainly going to take care of the physical,
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and then as we move up the ladder,
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there are more responsibilities that are going to sit on
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the Cloud provider and
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less responsibilities on the Cloud user.
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With that, we're going to wrap up this video.
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Then as a summary,
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what are the things we talked about and learned?
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Cloud computing, it really is a new operational model.
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It combines the benefits of abstraction, automation,
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and it's a new way of delivering
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technology and consuming technology as a business,
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as an organization, as an individual,
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and as a wide range of benefits.
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Its underlying physical infrastructure is
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abstracted through virtualization,
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automation, and orchestration.
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We're going to hit on this again and again and again.
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Provisioning virtualized assets to
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create these resource pools.
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We talked about how can Cloud
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improve agility, economics, resiliency?
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Last but not least,
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we touched on the security and
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the shared responsibility aspect of security,
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and we're going to dive into that deeper.
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I look forward to seeing you in the next video.
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