[TIME RUNNING OUT] Discovery & Management Across the Database Environment

Virtual I/O (VIO)

Definition - What does Virtual I/O (VIO) mean?

Virtual I/O (VIO) is a technique used in enterprise environments to lower costs, improve performance and make server management easy and simple. The virtual I/O methodology allows a single physical adapter card to be seen as multiple virtual network interface cards (NICs) and virtual host bus adapters (HBAs), which operate just like conventional NICs and HBAs.

Virtual I/O may be known as input/output (I/O) virtualization.

Techopedia explains Virtual I/O (VIO)

In virtualized environments, server I/O plays a major role in deploying the server effectively and successfully. Virtualized servers are capable of running multiple applications at a time, and there is a constant demand for more bandwidth and connections to multiple networks and storage devices. Virtual I/O methodology helps in removing performance bottlenecks by binding I/O to a single connection. This single virtual I/O connection usually has a bandwidth that exceeds the server's I/O capacity. In virtualized servers running I/O-intensive applications, the virtual I/O technique can help increase virtual machine performance as well as the number of virtual machines per server.

Some of the important features of virtual I/O include:

  • Cost Savings: Virtual I/O helps to lower costs by allowing easy and simple server management. The use of fewer cards, cables and switch ports further helps in reducing costs.
  • Fewer Cables: Virtual I/O requires only a single cable to connect servers to both storage and the network. Multiple I/O cables are thus replaced with a single cable that facilitates shared transport for all network and storage devices.
  • Increased I/O Density: Virtual I/O technique increases the I/O density by enabling more connections.
  • Simplified Management: Virtual I/O enables greater use of virtual NICs and HBAs while providing greater flexibility.
  • Space Savings: Virtual I/O enables more I/O connections to exist within a small space by consolidating all storage and network connections to a single physical interconnect.
Share this:

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.