Virtualization

Virtualization improves quality of service and security, increases flexibility, and reduces costs.

The Telme Platform offers the Host for Virtual Machines (VM) with the following benefits:

  • Consolidation of servers,
  • Best use of hardware,
  • Installation and complete configuration of Virtual Machine in minutes,
  • Optimizes physical space, ensuring excellent customer experience throughout the life of the solution (deploy, operate, support)
  • Reliable, extensible and economical platform,
  • Virtualization management solution easy to operate and maintain,
  • Management and easy implementation of virtual image,
  • Pool of resources and use of dynamic VM,
  • Real-time live VM mobility,
  • Simplification through configuration templates,
  • Full audit of the integrity status of the virtualized environment.

Virtual machines (VM) offer many benefits in a virtualization project: server consolidation, increased utilization and faster recovery times after failure.

A virtual machine (VM) is a separate and independent software instance that includes a full copy of an operating system and application software.

Each instance can then share the server's computing resources -- dramatically increasing physical server hardware usage.

Server consolidation is the most compelling benefit of VMs.  

A typical non-virtualized application server may reach just 5% to 10% utilization. But a virtual server that hosts multiple VMs can easily reach 50% to 80% utilization.

The net result is that more virtual machines can be hosted on fewer physical servers, translating into lower costs for hardware acquisition, maintenance, energy and cooling system usage.

 

Virtualization also facilitates VM creation and VM management. Unlike conventional servers that host a mixture of an OS, driver and application files, an entire VM exists as a single file.

A VM file can be created and duplicated as needed, proliferating virtual machines on servers across an enterprise. These golden images can be modified for each user or application.

VM tools assist server management by allocating and regulating the computing resources that each VM uses.

For example, multiple CPU cores may be allocated to a CPU-intensive application in one VM while other noncritical VMs may share the same CPU core.

Similarly, an administrator can reserve the minimum required amount of network bandwidth for a VM running a transactional application. A virtual file or print server may not have this reservation.

Administrators must balance the computing demands of each VM against the total computing resources that each virtual server provides. Instead of supporting multiple memory-intensive VMs on the same server and risking low-memory performance penalties, the VMs can be distributed across multiple physical servers.

The concept of VM workload balancing also relates to CPU and I/O-intensive VMs.
Certain tools enable nondistruptive workload migration between servers so that VMs can move from server to server in real time. Migration continues until an acceptable balance of server consolidation and performance is achieved.

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