Veritas InfoScale™ 8.0 Virtualization Guide - Linux
- Section I. Overview of Veritas InfoScale Solutions used in Linux virtualization
- Overview of supported products and technologies
- About Veritas InfoScale Solutions support for Linux virtualization environments
- About Kernel-based Virtual Machine (KVM) technology
- About the RHEV environment
- Overview of supported products and technologies
- Section II. Implementing a basic KVM environment
- Getting started with basic KVM
- Veritas InfoScale Solutions configuration options for the kernel-based virtual machines environment
- Installing and configuring Cluster Server in a kernel-based virtual machine (KVM) environment
- Configuring KVM resources
- Getting started with basic KVM
- Section III. Implementing Linux virtualization use cases
- Application visibility and device discovery
- Server consolidation
- Physical to virtual migration
- Simplified management
- Application availability using Cluster Server
- Virtual machine availability
- Virtual machine availability for live migration
- Virtual to virtual clustering in a Red Hat Enterprise Virtualization environment
- Virtual to virtual clustering in a Microsoft Hyper-V environment
- Virtual to virtual clustering in a Oracle Virtual Machine (OVM) environment
- Disaster recovery for virtual machines in the Red Hat Enterprise Virtualization environment
- Disaster recovery of volumes and file systems using Volume Replicator (VVR) and Veritas File Replicator (VFR)
- Multi-tier business service support
- Managing Docker containers with InfoScale Enterprise
- About the Cluster Server agents for Docker, Docker Daemon, and Docker Container
- Managing storage capacity for Docker containers
- Offline migration of Docker containers
- Disaster recovery of volumes and file systems in Docker environments
- Application visibility and device discovery
- Section IV. Reference
- Appendix A. Troubleshooting
- Appendix B. Sample configurations
- Appendix C. Where to find more information
- Appendix A. Troubleshooting
VCS in host to provide the Virtual Machine high availability and ApplicationHA in guest to provide application high availability
VCS running in the host monitors the virtual machine to provide the VM high availability. ApplicationHA running in the virtual machine (VM guest ensures the application high availability by monitoring the configured application. VCS and ApplicationHA can be combined together to provide the enhanced solution for achieving application and VM high availability.
VCS in host provides the primary VM monitoring. It can start/stop the virtual machine and fail-over it to another node in case of any fault. We then run ApplicationHA within the guest that monitors the application running inside the guest virtual machine. ApplicationHA in guest will not trigger an application fail-over in case of application fault, but it'll try to restart the application on same VM guest. If ApplicationHA fails to start the application, it can notify the VCS running in the host to take corrective action which includes virtual machine restart or virtual machine fail-over to another host.
For detailed information about ApplicationHA and integration of ApplicationHA with VCS, see the ApplicationHA User's Guide.