Simple definition
A reference image used to quickly create new virtual machines.
Technical definition
A reference image used to quickly create new virtual machines. In a virtualised infrastructure, this component intervenes in execution, mobility, the storage or availability of virtual machines.
What is it used for?
Operate and maintain a virtual machine infrastructure reliably.
Practical example
Example: This concept may occur during migration, incident or maintenance of VM.
Common issues
- Insufficient capacity
- Dependency on storage or networking
- Operation performed without rollback