Korea infra Co., Ltd.

Server Virtualization

  1. Server Virtualization
  2. Server virtualization is an industry-proven technology that allows a variety of virtual machines to operate individual physical servers. Each VM is completely isolated from other VMs, allowing it to operate independently, and is completely isolated from each other, even on hosts operated by a thin layer of software known as hypervisor. This complete separation allows different virtual machines to run different operating systems and applications.
  1. Main details
  2. Perfect and cost-effective data center and server virtualization
    - Designed for Server OS such as Windows, Linux/Unix…etc. it has the effect of reducing the space and cost of physical servers, and enables business continuity through integration and HA configuration of different servers.

    Efficiency promotion of data center operations through automation
    - By integrating server workload, it reduces the management cost such as power and cooling…etc.
    - The actual number of servers is reduced and integrated management is possible
    - Administrators can save time and money by automating key IT processes
  1. Pros
  2. Ease of user

    • Small volume(4MB) needed in disk storage
    • No failing point
    • Multiple server management possible from the center
  3. Economics

    • Free Citrix Xenserver virtualization Server Solution
    • Reduced space, power, and cooling costs by server consolidation
  1. Expected Effects
  2. Standardization

    • Establish a standard architecture that can flexibly respond to future changes in IT resource demand
    • Efficient operating environment through architecture standardization & integration
    • Standard image configuration for system software, middleware, and development framework.
  3. Resource use optimization

    • Accept existing platform to increase existing resource utilization and reuse rate
    • Supports an independent system that can optimize resource use for services with the performance as its priority(ex: DB server)
    • In case of Linux, Citrix XenServer is adopted to ensure high performance
  4. Automation

    • Minimize management points and error repetition
    • Active response to expandability in preparation for future growth by adding new services
    • Revitalizing ecosystem for CP/ BP developers, strengthening service development and operation support
  1. Application Example

  1. Hyper-v Server Virtualization
  2. Windows Server Hyper-V provides a virtualization platform for building cloud data centers.
    Hyper-V servers provide high performance, security, reliability, and flexible infrastructure environments for large, high-scale data center deployments.
  1. Main Features & Specialties
  2. Scalability, Performance, Density

    • Up to 64 virtual CPUs, 1TB of memory can be allocated per virtual machine
    • Support up to 1,024 virtual machines per physical server
    • Support up to 4,000 virtual machines per Hyper-V cluster
  3. Secure Multitenancy

    • Private VLAN Support
    • Trunk mode support for virtual machines
    • Provides virtual switch-level network access control
    • Provides network monitoring/mirroring capabilities
    • Standard API delivery
  4. Flexible Infrastructure

    • Multiple virtual machines can be moved to another Hyper-V server simultaneously (Live Migration) without shutting down
    • Virtual disks can be moved without shutting down the virtual machine (Live Storage Migration)
    • Move virtual machines between standalone Hyper-V servers without shutting down virtual machines
    • Provides network virtualization capabilities
    • Data Center Bridge support
  5. High availability & Resiliency

    • Replicate virtual machines to other Hyper-V servers (deploying DR sites)
    • Virtual Machine Backup
    • Manage 64 Hyper-Vs as a single cluster
    • Integration with Storage Array(Offloaded Data Transfer, ODX)
    • Provides protection at the level of Hyper-V servers, virtual machines, and applications
    • Prioritize per virtual machine
    • Provides automatic distribution of virtual machines in the same role
  1. Application Cases