A virtual server is a software-defined server that can be created and configured through virtualization technology, whereas a physical server is a dedicated piece of hardware that runs its own operating system and resources.
- Virtualization technology: Virtual servers are created and configured through virtualization technology, which allows multiple virtual servers to run on a single physical server, each with their own operating system and resources. Physical servers do not use virtualization technology, they are a single dedicated piece of hardware.
- Resource allocation: Virtual servers can share and allocate resources, such as CPU, memory, and storage, as needed, while physical servers have fixed resources.
- Isolation: Virtual servers can be isolated from one another, providing a separation of concerns between different applications and services. Physical servers do not have this isolation feature.
- Scalability: Virtual servers can be easily scaled up or down as needed, whereas physical servers often require additional hardware to be added or replaced to accommodate changes in workload or traffic.
- Flexibility: Virtual servers can be created and configured to meet specific needs and requirements, and can be easily moved or copied as needed. Physical servers have a limited flexibility.
- Cost: Virtual servers can lead to significant cost savings on hardware and maintenance as multiple virtual servers can run on a single physical server, whereas physical servers require dedicated hardware which can be more expensive.
