Dell EMC OpenManage Essentials Version 2.5 User's Guide

Managing the Virtual Input-Output Identities of a Server—Stateless Deployment

The I/O interfaces of a server, such as NICs or HBAs, have unique identity attributes that are assigned by the manufacturer of the interfaces. These unique identity attributes are collectively known as the I/O identity of a server. The I/O identities uniquely identify a server on a network and also determine how the server communicates with a network resource using a specific protocol. Using OpenManage Essentials, you can automatically generate and assign virtual identity attributes to the I/O interfaces of a server.

Servers deployed using a device configuration template that contains virtual I/O identities are known to be stateless. Stateless deployments allow you to create a server environment that is dynamic and flexible. For example, deploying a server with virtual I/O identities in a boot-from-SAN environment allows you to quickly perform the following:
  • Replace a failing or failed server by moving the I/O identity of the server to another spare server.

  • Deploy additional servers to increase the computing capability during high workload.

The Deployment portal allows you to perform the following tasks that are required to manage the virtual I/O identity of a server:
  • Create virtual I/O pools
  • Create compute pools
  • Deploy a server
  • Reclaim the virtual I/O identity of a server
  • Replace a server

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