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
About application availability options
Veritas products can provide the ultimate levels of availability in your KVM environment. In a KVM environment, you can choose a different combination of High Availability solutions: ApplicationHA and Cluster Server (VCS).
ApplicationHA by itself provides application monitoring and restart capabilities while providing ultimate visibility and manageability through Veritas Operations Manager. When ApplicationHA is adopted together with Cluster Server in the host, the two solutions work together to ensure that the applications are monitored and restarted if needed, and virtual machines are restarted if application restarts are not effective. These two solutions work together to provide the ultimate level of availability in your KVM environment.
If your KVM environment requires the same level of application availability provided by a VCS cluster in a physical environment, you can choose to adopt Cluster Server in the virtual machines. In this configuration, your application enjoys fast failover capability in a VCS cluster in the virtual machines.
Table: Comparison of availability options
Required availability level | Recommended solution | Supported virtualization option |
---|---|---|
Application monitoring and restart | ApplicationHA in the virtual machines | Red Hat Enterprise Linux (RHEL) KVM |
Virtual machine monitoring and restart | VCS cluster in the host monitoring the virtual machines as a resource | Red Hat Enterprise Linux (RHEL) KVM Red Hat Enterprise Virtualization (RHEV) SUSE Linux Enterprise Server (SLES) KVM |
Combined application and virtual machine availability | ApplicationHA in the virtual machine and VCS cluster in the host | Red Hat Enterprise Linux (RHEL) KVM |
Application failover to standby node in cluster | VCS cluster in the virtual machines | Red Hat Enterprise Linux (RHEL) KVM SUSE Linux Enterprise Server (SLES) KVM Red Hat Enterprise Virtualization (RHEV) Microsoft Hyper-V Oracle Virtual Machine (OVM) |
Note:
For application high availability and failover capabilities the application data must be on the shared storage accessible to all the nodes of the VCS cluster.
For setup information for ApplicationHA or VCS:
See Installing and configuring Cluster Server in a kernel-based virtual machine (KVM) environment.
Note:
You can also use the cluster functionality of Storage Foundation HA or Storage Foundation Cluster File System HA if you need storage management capabilities in addition to application availability for your KVM environment.