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Veritas InfoScale™ 8.0 Virtualization Guide - Linux
Last Published:
2021-12-21
Product(s):
InfoScale & Storage Foundation (8.0)
Platform: 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
Rapid Provisioning of virtual machines using the golden image
As mentioned above, for rapid provisioning of new virtual machines based on the golden image, we need to have full or space-optimized snapshots of the Golden Boot Volume. These snapshots can then be used as boot images for the new virtual machines. The process to create these snapshots is outlined below in the procedures below.
Creating Instant, Full Snapshots of Golden Boot Volume for Rapid Virtual Machine Provisioning
To create instant, full snapshots of the golden boot volume for rapid virtual machine provisioning
- Prepare the volume for an instant full snapshot. In the example, the disk group is boot_dg and the golden boot volume is gold-boot-disk-vol.
$ vxsnap -g boot_dg prepare gold-boot-disk-vol
- Create a new volume which will be used as the boot volume for the new provisioned guest. The size of the guests boot volume must match the size of the golden boot volume.
$ vxassist -g boot_dg make guest1-boot-disk-vol 16g layout=mirror
- Prepare the new boot volume so it can be used as a snapshot volume.
$ vxsnap -g boot_dg prepare guest1-boot-disk-vol
- Create the full instant snapshot of the golden boot volume.
$ vxsnap -g boot_dg make source=gold-boot-disk-vol/snapvol=\ guest1-boot-disk-vol/syncing=off
- Create a new virtual machine, using the snapshot guest1-boot-disk-vol as an "existing disk image."
To create instant, space-optimized snapshots of the golden boot volume for rapid virtual machine provisioning
- Prepare the volume for an instant snapshot. In the example, the disk group isboot_dg and the golden boot volume is gold-boot-disk-vol.
$ vxsnap -g boot_dg prepare gold-boot-disk-vol
- Use the vxassist command to create the volume that is to be used for the cache volume. The cache volume will be used to store writes made to the space-optimized instant snapshots.
$ vxassist -g boot_dg make cache_vol 5g layout=mirror init=active
- Use the vxmake cache command to create a cache object on top of the cache volume which you created in the previous step.
$ vxmake -g boot_dg cache cache_obj cachevolname=cache_vol autogrow=on
- Start the cache object:
$ vxcache -g boot_dg start cache_obj
- Create a space-optimized instant snapshot of the golden boot image:
$ vxsnap -g boot_dg make source=\ gold-boot-disk-vol/newvol=guest1-boot-disk-vol/cache=cache_obj
- Create a new virtual machine, using the snapshot of the golden image as an existing disk image.