This IBM® Redpaper™ publication describes the adapter-based virtualization capabilities that are being deployed in high-end IBM POWER7+™ processor-based servers.
Peripheral Component Interconnect Express (PCIe) single root I/O virtualization (SR-IOV) is a virtualization technology on IBM Power Systems servers. SR-IOV allows multiple logical partitions (LPARs) to share a PCIe adapter with little or no run time involvement of a hypervisor or other virtualization intermediary.
SR-IOV does not replace the existing virtualization capabilities that are offered as part of the IBM PowerVM® offerings. Rather, SR-IOV compliments them with additional capabilities.
This paper describes many aspects of the SR-IOV technology, including:
- A comparison of SR-IOV with standard virtualization technology
- Overall benefits of SR-IOV
- Architectural overview of SR-IOV
- Planning requirements
- SR-IOV deployment models that use standard I/O virtualization
- Configuring the adapter for dedicated or shared modes
- Tips for maintaining and troubleshooting your system
- Scenarios for configuring your system
This paper is directed to clients, IBM Business Partners, and system administrators who are involved with planning, deploying, configuring, and maintaining key virtualization technologies.
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Table of contents
Chapter 1. SR-IOV overview
Chapter 2. Planning
Chapter 3. Deployment scenarios
Chapter 4. Configuration
Chapter 5. Maintenance