VM

Virtual Machine (VM) is an isolated, software-based computer instance created via Hypervisor virtualization technology. It abstracts hardware resources on a single physical host, delivering complete hardware functionality and running an independent guest operating system.

 

Hybrid Cloud

VM

Characteristics of Virtual Machines:

  • High cost-effectiveness.
  • Business deployment is largely consistent with that of bare-metal servers.
  • Simple to manage, featuring pre-installed operating system environments and resource templates.
  • Rapid provisioning and a high level of automation.
  • Flexible deployment and resource provisioning.

Applicable Scenarios:

  • Personal websites and blog platforms.
  • Official websites for small and medium-sized enterprises (SMEs).
  • Small and medium-sized e-commerce platforms.
  • Test and development environments.
  • Early-stage or short-term business scenarios for enterprises.

The Core Problems VM Addresses

  • Improve Resource Utilization

         Issue:
    Traditional physical servers typically adhere to a "one server, one application" model (e.g., running only one website or application), leading to extremely low CPU and memory utilization (averaging 10%-15%) and substantial waste of hardware and power resources.
    Solution:
    VMs allow multiple virtual machines to run simultaneously on a single powerful physical server, fully leveraging hardware resources and boosting the utilization rate to over 80%, thus significantly reducing hardware procurement and energy costs.

  • Realize Isolation and Security

         Issue:
    Running multiple applications on the same server can lead to conflicts (such as software version incompatibility), and if one application is compromised or crashes, it will affect other services across the entire server.
    Solution:
    Each VM features independent virtual hardware and an operating system, with complete isolation from each other. The crash, intrusion, or debugging configuration of one VM will not affect other VMs or the host, thereby ensuring better security and stability.

  • Strengthen Flexibility and Agility

         Issue:
    Deploying a new physical server entails a lengthy process (procurement, commissioning, installation, configuration), hindering its ability to respond quickly to business needs. Hardware maintenance or upgrades require downtime, resulting in business interruptions.
    Solution:
    VMs are software files that can be quickly created, cloned, backed up, and migrated simply like copying files. A new environment can be deployed within minutes, and VMs can be live-migrated from one physical machine to another without downtime, enabling rapid business deployment while ensuring high availability.

  • Guarantee Compatibility and Simplified O&M (Operations and Maintenance)

         Issue:
    New and old applications may require different versions of underlying operating systems or runtime environments, making it difficult to coexist on the same physical machine. High hardware dependency means replacing a server may require entirely reinstalling and reconfiguring the entire system.
    Solution:
    VMs decouple software (operating systems and applications) from the underlying hardware. Applications are encapsulated in independent, hardware-agnostic VMs and can run seamlessly on any compatible physical server. This simplifies backup, disaster recovery, and migration tasks, and also enables a compatible running environment for legacy systems.

Hybrid Cloud

VM

VM

IP Transit

Bare Metal

SD-IoT