suspend VM

[DwyaneWade]

when suspend button gets clicked, how does guest OS know suspend event is triggered? is there vmtools script?

but I tried with my guest OS without vmtools installed, suspend button still works.

thank you very much~

[nielse]

When you suspend a virtual machine, a file with a .vmss extension is created. This file contains the entire state of the virtual machine. When you resume the virtual machine, its state is restored from the .vmss file.

[DwyaneWade]

Thank you nielse,

do you know which script will be called when suspend gets triggered and then it will create the .vmss file? I need to know the code which grabs the suspend event.

[weinstein5]

VMware suspend is independent of the OS that is why it still works without VMware tools installed - its is a feature of the ESXi server basically freezing the VM and wiriting all pending instructions to disk - when the VM is unsuspended the instructions are cued back to the vcpu

[DwyaneWade]

Hi weinstein5,

Nice explanation, so you mean guest OS cannot know the suspend is triggered? in our guest OS, I plan to do some operations when suspend is triggered. If there is a way for guest OS to know the suspend is triggered, I can do something on the event handler.

Thank you very much for your great explanation.

[weinstein5]

You should be able to script that will execute a commend within the vm and then initiate the suspend  - you might post a question in the automation tools section of VMTN