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How does VMs connect to cinder created Volumes ?

 

Hello everyone,

I have cinder installed on my controller node, can anyone explain to me how a VM becomes aware of the volume ?

After all a VM is launched on a node different than the controller one so if the VM wants to store something on the Volume, does it have to send the data to the controller node which in his turn will save the data on the volume using cinder or is there a direct connection between the VM and the volume after allocation, if yes, is this connection on the hypervisor level or what level exaclty?

Thanks, really appreciate it if you can help me out there !

Best regards
Fellow Stacker


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