InfoScale™ 9.0 Virtualization Guide - Linux
- Section I. Overview of InfoScale solutions used in Linux virtualization
- Overview of supported products and technologies
- Overview of the InfoScale Virtualization Guide
- About InfoScale support for Linux virtualization environments
- About KVM technology
- About InfoScale deployments in OpenShift Virtualization environments
- About InfoScale deployments in OpenStack environments
- Virtualization use cases addressed by InfoScale
- About virtual-to-virtual (in-guest) clustering and failover
- Overview of supported products and technologies
- Section II. Implementing a basic KVM environment
- Getting started with basic KVM
- Creating and launching a kernel-based virtual machine (KVM) host
- RHEL-based KVM installation and usage
- Setting up a kernel-based virtual machine (KVM) guest
- About setting up KVM with InfoScale solutions
- InfoScale configuration options for a KVM environment
- Dynamic Multi-Pathing in the KVM guest virtualized machine
- DMP in the KVM host
- SF in the virtualized guest machine
- Enabling I/O fencing in KVM guests
- SFCFSHA in the KVM host
- DMP in the KVM host and guest virtual machine
- DMP in the KVM host and SFHA in the KVM guest virtual machine
- VCS in the KVM host
- VCS in the guest
- VCS in a cluster across virtual machine guests and physical machines
- Installing InfoScale in a KVM environment
- Installing and configuring VCS in a kernel-based virtual machine (KVM) environment
- Configuring KVM resources
- Getting started with basic KVM
- Section III. Implementing InfoScale an OpenStack environment
- Section IV. Implementing Linux virtualization use cases
- Application visibility and device discovery
- Server consolidation
- Physical to virtual migration
- Simplified management
- Application availability using Cluster Server
- About application availability options
- Cluster Server in a KVM environment architecture summary
- Virtual-to-virtual clustering and failover
- I/O fencing support for virtual-to-virtual clustering
- Virtual-to-physical clustering and failover
- Recommendations for improved resiliency of InfoScale clusters in virtualized environments
- Virtual machine availability
- Virtual to virtual clustering in a Hyper-V environment
- Virtual to virtual clustering in an OVM environment
- Multi-tier business service support
- Managing Docker containers with InfoScale Enterprise
- About 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
- Limitations while managing Docker containers
- Section V. Reference
- Appendix A. Troubleshooting
- InfoScale logs for CFS configurations in OpenStack environments
- Troubleshooting virtual machine live migration
- The KVMGuest resource may remain in the online state even if storage connectivity to the host is lost
- VCS initiates a virtual machine failover if a host on which a virtual machine is running loses network connectivity
- Appendix B. Sample configurations
- Appendix C. Where to find more information
- Appendix A. Troubleshooting
Recovery of Multi-tier Applications managed with Virtual Business Services in InfoScale Operations Manager
In a multi-tier business service, different tiers usually have different requirements. One tier may require full-fledged high availability with split-second error detection and fast failover, while other tiers just need basic start and stop capability. The management of start and stop for any service is critical to successful recovery. Business services have strict start and stop orders that need to be validated before proceeding to the next service. Often times, these services are managed by different IT teams. The actual start/stop command for each tier may be simple, but given the amount of coordination, communication, validation and handover between the different teams, the process can be time consuming.
The Red Hat Enterprise Virtualization environment with Cluster Server can be managed with InfoScale Operations Manager, which provides a centralized console to monitor, visualize, and configure all resources. InfoScale Operations Manager also provides a view into every level of the IT infrastructure from the application to the disk drives. It provides a consistent Graphical User Interface (GUI) and Command Line Interface (CLI) driven administration across all platforms: Red Hat Enterprise Virtualization, Red Hat Enterprise Linux, VMware, UNIX and Windows. InfoScale Operations Manager reports on the relationship of applications to virtual machines, physical servers and clusters. Many organizations use different staff to manage servers, SAN and storage connectivity, storage and applications. These organizations benefit from this unified view that can administer server clusters and HA/DR configurations from this single console view.