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 live migration
You can enable live migration of guest virtual machines using shared storage or commodity hardware by leveraging Flexible Storage Sharing (FSS) through Cluster Volume Manger (CVM) and Cluster File System (CFS), components of Storage Foundation Cluster File System HA (SFCFSHA). Using CVM significantly reduces planned downtime for individual virtual machines. Individual virtual machines can now be statefully migrated from host to host, enabling better load-balancing, lower machine downtime and path-management of individual physical servers. Physical servers (hosts) can now join and exit the server pool (physical server cluster) at will while the individual guest virtual machines and their corresponding applications continue to run.
For live migration, by using Fast Failover using CVM/CFS in the guest and host, rather than running a single-node Veritas Volume Manager (VxVM) in the host, you can run the CVM/CFS in the host and cluster multiple physical servers within the same server cluster or server pool. This configuration includes Cluster Server (VCS) also within the host. The significant advantage of creating a cluster of physical servers is that live migration of KVM or RHEV guest virtual machines from one physical server to another is fully operational and supported.
The live migration use case is supported for the following Linux virtualization techologies:
Red Hat Enterprise Linux (RHEL) KVM
Red Hat Enterprise Virtualization (RHEV)
SUSE Linux Enterprise Server (SLES) KVM