Elastic disk provisioning architecture & redundant storage architecture in cloud computing

In cloud computing, storage is a critical resource that must be both flexible and reliable. Elastic Disk Provisioning allows storage to scale up or down dynamically as needed, while Redundant Storage ensures that data remains safe and accessible even during failures. Together, they provide the scalability and dependability modern applications demand.

1. NADAR SARASWATHI COLLEGE OF ARTS AND SCIENCE Cloud Computing ELASTIC DISK PROVISIONING ARCHITECTURE & REDUNDANT STORAGE ARCHITECTURE IN CLOUD COMPUTING By K. NANDHINI II – M.SC. (Computer Science)

2. Elastic Disk Provisioning Architecture & Redundant Storage Architecture in Cloud Computing Elastic Disk Provisioning – a method to allocate storage dynamically based on workload demand, ensuring cost efficiency and scalability. Redundant Storage Architecture – ensures data reliability and availability by replicating or mirroring data across multiple storage systems.

3. Introduction In cloud computing, storage is a critical resource that must be both flexible and reliable. Elastic Disk Provisioning allows storage to scale up or down dynamically as needed, while Redundant Storage ensures that data remains safe and accessible even during failures. Together, they provide the scalability and dependability modern applications demand. Cloud computing relies on efficient and scalable storage. Storage must handle: Elastic growth (on-demand scaling). Redundancy (data protection & availability). Two main approaches: Elastic Disk Provisioning Architecture Redundant Storage Architecture

4. What is Elastic Disk Provisioning? Elastic Disk Provisioning is a technique where cloud storage is allocated as per real-time demand. Instead of buying large fixed storage, users only use and pay for the capacity they need. This ensures no wastage and supports fluctuating workloads efficiently. Most major cloud providers like AWS, Azure, and GCP use this approach. Allocates storage dynamically based on demand. Prevents over-provisioning & underutilization . Enables cost efficiency in cloud environments. Used in major cloud services (AWS EBS, Azure Managed Disks, Google Persistent Disks).

5. Elastic Disk Provisioning Architecture This architecture works by using a virtualized pool of storage resources. When a user or application requests storage, the provisioning engine allocates it dynamically. A monitoring system keeps track of usage and performance, and scaling mechanisms automatically expand or shrink disk space. APIs are provided so developers can automate provisioning without manual intervention. Key Components: Virtualized Storage Pool Disk Provisioning Engine Monitoring & Scaling Layer APIs for Automation Workflow: Request → Allocate → Monitor → Scale

6. Redundant Storage Architecture Redundant storage architecture is designed to keep data available even when part of the system fails. It works by creating copies of data through replication or mirroring, sometimes across different disks, servers, or even data centers. This redundancy is critical for disaster recovery and for keeping applications running without interruption. Common methods include RAID setups, cluster replication, and erasure coding. Ensures data availability & fault tolerance Uses replication & mirroring techniques Supports disaster recovery Examples: RAID, Replicated Clusters, Erasure Coding

7. Redundant Storage Architecture Design In this design, a primary storage node holds the original data, and replication nodes maintain exact copies. If the primary node fails, a failover mechanism automatically redirects requests to a replica, ensuring uninterrupted service. A load balancer or controller manages traffic and ensures optimal performance. Often, data is stored across multiple geographic regions for extra resilience. Key Components: Primary Storage Node Replication Nodes Failover & Recovery Mechanism Load Balancer / Controller Data replicated across multiple nodes or regions

8. Advantages of Redundant Storage High availability (minimal downtime). Data protection from hardware failures. Faster disaster recovery. Improved reliability for mission-critical apps.

9. Conclusion Elastic Disk Provisioning → Scalability & Cost Optimization . Redundant Storage → Reliability & High Availability . Together, they form the backbone of cloud storage solutions . Future scope: AI-driven provisioning & self-healing storage systems.

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