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The goals of hypervisor design include:
1. Resource Management: Efficiently allocate and manage hardware resources (CPU, memory, storage, and network) among multiple virtual machines (VMs) while ensuring that each VM performs optimally.
2. Isolation: Ensure that each VM operates independently, preventing one VM from interfering with the operation or security of another. This includes managing fault and security isolation.
3. Performance: Minimize the overhead introduced by virtualization to ensure that VMs have performance characteristics as close to bare-metal as possible.
4. Scalability: Support the deployment and dynamic scaling of VMs in response to varying workloads and demands without degradation of performance.
5. Security: Provide robust security measures to protect the hypervisor and VMs from attacks, including secure VM creation, migration, and termination processes.
6. Compatibility and Portability: Ensure that the hypervisor can work with a wide range of operating systems and applications, allowing for easy migration and deployment of VMs across different environments.
7. Manageability: Offer tools and interfaces for easy monitoring, managing, and configuring the virtualized environment, including automated management capabilities.
8. High Availability: Implement features for fault tolerance and failover to maintain uptime of services even in the event of hardware failures.
9. Support for Multiple Virtualization Techniques: Provide support for various virtualization models such as full virtualization, para-virtualization, and hardware-assisted virtualization
The goals of hypervisor design include:
1. Isolation: Ensuring that virtual machines (VMs) operate independently and securely from one another to prevent interference or unauthorized access.
2. Resource Management: Efficiently managing and allocating hardware resources (CPU, memory, storage, and networking) to different VMs to optimize performance and utilization.
3. Performance: Minimizing overhead and ensuring that VMs operate with performance comparable to native execution.
4. Scalability: Supporting the addition of more VMs and resources as needed without significant degradation in performance or management complexity.
5. Portability: Allowing VMs to be moved between different physical hosts and environments with minimal effort.
6. Security: Implementing robust security mechanisms to safeguard against vulnerabilities and attacks on both the hypervisor and the VMs.
7. Manageability: Providing tools and interfaces that simplify the management and monitoring of virtualized environments.
8. Fault Tolerance: Ensuring high availability and reliability of VMs, with features such as live migration and automated recovery from failures.
9. Compatibility: Supporting a diverse range of operating systems and applications to provide flexibility in deployment.
10. Cost Efficiency: Reducing overall infrastructure costs through better resource utilization and reduced hardware requirements.