title: Is there downtime involved when using Azure vertical scaling?
body: <p>I have a two websites on a VM with WHM/cPanel and MySql.</p>
  
  <p>I am looking to move this into Azure and use vertical scaling. Visits to the website are usually stable but three or four times a year there is a big increase in traffic which historically has caused big problems for the existing host.</p>
  
  <p>I am looking to move it into the A5-A7 range of servers for the vertical scaling.</p>
  
  <p>I cannot find anything anywhere about whether there is any downtime involved when Azure scales up my VM from A5 to A6 or whatever.</p>
  
  <p>Does anyone have any experience with this and can give me a definitive answer as to whether there is downtime when using vertical scaling, and if there is any downtime involved then the kind of downtime I would expect</p>
  
  <p>Thank you for your time.</p>