问题
How does Google Cloud handle increasing or decreasing the size of a VM i.e. changing the RAM and CPU options.
Thank you.
回答1:
This behavior has now changed, and instances are customizable before and after creation. However, the instance must be shutdown in order to edit it and increase it's RAM or/and CPU. More information is available in this Help Center article.
回答2:
you can stop the instance and manipulate the memory or cpu which ever you need and start he instance after you have made your necessary changes
回答3:
Once a machine has been created, you cannot increase the RAM or CPU. this is only done when first instantiated.
However, there is a workaround. From the Developers Console, you will need to snapshot the existing VM disk, delete the machine, create a new one (choose the CPU and RAM according to your needs, and where it says "Boot disk" choose "New Disk from snapshot" and select the snapshot you created earlier).
I know it sounds a bit laborious but actually it is pretty straight-forward, should not take you more than a couple of minutes.
Hope this helps !
来源：https://stackoverflow.com/questions/27128599/how-to-increase-the-size-of-a-google-cloud-virtual-machine