Though Windows R2 is hot swappable I would not recommend you do that. My best suggestion would be to schedule a downtime or work under current downtimes should you have those planned in your environment. Then power those VM's down and change their vCPU's accordingly. Giving them a small boost in Memory can also increase performance for them while regulating cpu usage if the worry is end user impact. I cannot speak to Linux VM's but in my past those are much more particular when you make back end changes to resources on the fly.
↧