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© 2023 Menacit AB <foss@menacit.se> |
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Virtualisation course: Economic benefits |
Joel Rangsmo <joel@menacit.se> |
© Course authors (CC BY-SA 4.0) |
How virtualisation helps companies save money |
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- Less data center space
- Less supporting infrastructure
- Less electricity and cooling
- Less things that can break
- Shared margins for resource utilization
- Easier capacity planning
- Cost savings through use of more efficient/powerful hardware
Move VM from one hypervisor to another.
Guest is shutdown before migration and started afterwards.
Guest remains running and is almost seamlessly migrated between hypervisors.
Migration of VMs, especially live, enables service of hypervisors during office hours.
If hardware breaks, just start up the VM on another host.
Humans are likely the biggest cost.
Deploying software stacks on hardware requires time-consuming planning, procurement and setup.
Automation and self-service features cuts time required for meetings and hand-overs.
Virtualisation makes organisations faster.
Virtualisation provides a (more or less) predictable execution environment.
Testing, installation and support of complex software stacks is expensive.
Software vendors love virtual appliances.
