Cloud Computing Lecture 2 - Architecture and Management.pptx - Cloud Computing Lecture 2 – Cloud Architecture and Management Objectives • Overview

Cloud Computing Lecture 2 - Architecture and...

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Cloud Computing Lecture 2 – Cloud Architecture and Management
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Objectives Overview of cloud architecture Insight to the anatomy of the cloud The role of network connectivity Applications in the cloud Describe cloud management operations Migration of applications to the cloud
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Cloud Architecture Any technological model has an architecture based on function This is the same for the cloud It includes a number of dependencies on which it works and components that work over it
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Layer 1 (User/Client Layer) Lowest layer in the architecture All users of the cloud are in this layer Cloud connection is initiated Can be thick/thin Mobile/desktop As long as there is an internet connection and suitable application
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Layer 1: user/client layer Layer 2: Network layer Layer 3: Cloud management layer Layer 3: Hardware resource layer
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Layer 2 (Network Layer) Allows the users to connect to the cloud The whole infrastructure is dependant on this connection Primarily this is internet based Public cloud relies on entire internet based connectivity Location is abstract – you know it exists in a specific location, but the exact location is irrelevant or unknown Private cloud relies on a connection to a LAN But there may be a need for an internet connection to access a wider application or facility
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Layer 3 (Cloud Management Layer) Contains the software used to manage the cloud Can be a cloud based operating system Interfacing a data centre and a the user is an example A piece of software that manages resources is another example Other examples include: Resource management Optimisation Storage and workload management Cloud governance
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Layer 4 (Hardware Resource Layer) Provision for hardware resources Data centres
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Anatomy of the Cloud Cloud anatomy is not the same as cloud architecture Architecture defines and describes the technology on which it is working Anatomy is part of the architecture It is the structure of the cloud
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Application Platform Virtualised Infrastructure Virtualisation Server/Storage/Data Centres
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The 5 components of the cloud Application Applications are executed Platform Platforms exist to execute applications Between infrastructure and application Infrastructure Resources where components work/computational capability Virtualisation Logical components over existing resources Isolated and independent = infrastructure Physical Hardware Server and storage units
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Network Connectivity on Cloud Computing Resource sharing of an infrastructure in multiple locations connected by networks Resources are allocated to individuals from the resource pool Users get their required results Biggest key is network performance Deployment model defines their accessibility
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