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4 VHD template - Coggle Diagram
4 VHD template
image
Generalize a Windows
After the virtual machine has been shut down,
- deallocate it: az vm deallocate
- generalize it: az vm generalize
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Generalize a Linux
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After the virtual machine has been shut down,
- deallocate it: az vm deallocate
- generalize it: az vm generalize
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generalized image
After you build and customize a virtual machine, you can save the new image as a set of VHD
cleaning:
- host name
- username and credentials
- logs files
- security identifiers of OS
- win:Microsoft System Preparation (Sysprep) tool
- Linux: the Windows Azure Linux Agent (waagent) tool
snapshot
- read-only copy of a VHD
- restore a VHD to the state
If you're taking an image of a virtual machine that spans several VHDs, you must ensure that all disk activity has stopped, and that you take a snapshot of every VHD
--> stopping the virtual machine
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why
- High availability
- Physical security
- Durability
- Scalability
- Cost and performance
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