Cloud servers vs Physical servers - Differences in the following aspects

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Cloud server:
Resources are virtualized, allowing for on-demand allocation and quick adjustment of resources (such as CPU, memory, storage).
Physical server:
Resources are fixed, requiring the user to purchase hardware based on actual needs and adjusting resources can be complex.
Cost:
Cloud server:
Typically use pay-as-you-go mode, enabling users to adjust costs flexibly based on usage, suitable for startups or small projects.
Physical server:
Requires substantial investment in hardware upfront, with higher maintenance and upgrade costs afterwards.
Deployment time:
Cloud server:
Can be deployed quickly, typically within minutes to complete configuration and go live.
Physical server:
Deployment time is lengthy, requiring procurement, installation, and configuration of hardware.
Maintenance and management:
Cloud server:
Providers take responsibility for infrastructure maintenance and management, allowing users to focus on application development.
Physical server:
Users need to maintain hardware and network themselves, which has large workload.
Scalability:
Cloud server:
Can easily scale resources to adapt to business changes.
Physical server:
Scaling is more complex, requiring additional hardware equipment, possibly involving system downtime.
Reliability and backup:
Cloud server:
Cloud service providers usually provide redundant and backup solutions to ensure data security.
Physical server:
Users need to design their own backup plans, which is relatively complicated for fault recovery.