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Cloud Architecture (Unit 5) Cloud Architecture - CA - Unit 5 -SRMIST Syllabus - Short Notes Cloud Architectural Patterns Scalability - Number of users who can effectively use a service at the same time. Horizontal Scaling - Scaling on demand, by adding new nodes. Vertical Scaling -  Scaling on demand, by adding resources to existing nodes. Queue-Centric - First come first serve. Auto-Scaling - Automatically scales upon demand in a day. Eventual Consistency Primer - Making the cloud database consistent. Map Reduce - Like Hadoop, uses 2 functions one to map data to functions and the next to reduce the workload of the processor by distributing data to multiple functions. Database Sharding - Effective use of database storage by distributing data to multiple nodes. Node Failure - Recovery or response to node failure. Network Latency Primer - Reduce downtime and delay in communication over a network. Move applications closer to users. Move data closer to users. Ensure nodes & application

Cloud Architecture (Unit 4) Cloud Architecture - CA - Unit 4 - SRMIST Syllabus - Short Notes Resource Provisioning Strategies - Resource Provision Static -  Unchanging demands. Dynamic -  Varying demands. Self -  Customer purchasing computing resources. Parameters - Resource Provision Response Time Minimize Cost Maximize Revenue Fault Tolerant Reduced SLA Reduced Power Consumption Methods - Resource Provision Demand-driven -  Current demand leads to resource provision increment or decrement. Event-driven -  Anticipating peaks beforehand of events and increasing or decreasing resource requirements. Popularity-driven -  Internet search-based popularity determines resource requirements. Cloud Management Tools Cloud Economics Benchmarking Cloud Costs Migration Costs Tiered Pricing Unit Pricing Subscription-based pricing Cloud Service Management Process NIST

 Cloud Architecture (Unit 3) Cloud Architecture - CA - Unit 3 - SRMIST Syllabus - Short Notes Information Security Confidentiality - Secrecy of information. Integrity - Unaltered information & data. Availability - Authorization & timely access. Accountability - Accounting tasks that take place in the data center. Risk Triad - Managing risks. Security Concerns Velocity of attack - Existing threat spreads more rapidly. Data Privacy - Personal data must not be vulnerable. Compute level security - Server security, Hypervisor failure, etc. Network-level security - Firewall, authorization, etc. Storage level security - Data encryption, data shredding, LUN masking. Security Audit & SIEM Ensures compliance with regulations and standards. Ensures confidentiality, integrity & data availability. Effectiveness of cloud security. Access risk control and data security. Improves overall security posture. Business Continuity Information Availability - All available infrastructure and d

  Cloud Architecture (Unit 2) Cloud Architecture - CA - Unit 2 - SRMIST Syllabus - Short Notes Virtualization Hypervisor A software that allows running multiple OS concurrently on a single machine. It has 2 components -  Kernel & VMM  Types Bare-Metal -  Required hardware. Hosted  - Runs on OS. Benefits Server consolidation -  The server takes a lesser load. Isolation -  Separating VMs.  Encapsulation Hardware Independence Reduced Cost -  Can run multiple instances. (Linux, Windows, Ubuntu in one PC)   Abstraction Levels Architecture Hypervisor Architecture Xen Architecture Binary Translation Full virtualization Host Based virtualization Para Virtualization Types Hardware Virtualization Hardware Assisted CPU Virtualization Memory Virtualization I/O Virtualization Full Para Server Virtualisation Hypervisor Full Para OS Hardware Assisted Kernel Level Parallel Processing Components (Uni-Processor System) Hardware Architecture -  Communication of data memory with program memory. Pipeli

  Cloud Architecture (Unit 1) Cloud Architecture - Unit 1 - CA - SRMIST Syllabus - Short Notes Internet vs Cloud Cloud Definition Points (Characteristics) On-Demand - Provide Service when needed. Pay-as-you-go pricing - Pay only for services you use. Broad Network Access - Resources from any device - phone, laptop, tab, etc. Scalable  - More customers do not affect efficiency. Resource Pooling - Resources that are idle are all considered for cloud resources pool. Components Client Computers Thick Clients Thin Clients Data Center Distributed Servers Convergence   Resource Sharing Compute - Processing workload. Storage - Save & Store data. Database - Storage of structured & unstructured data sets. Network - Provide connectivity to every other resource type. Deployment Model Private - VPC externally or internally hosted for a specific organization or group. Public - Externally hosted for anyone to use. Hybrid - A combination of all other models (usually used in IT companies) Commu