Effective December 3, NetApp adopts Microsoft’s Business-to-Customer (B2C) identity management to simplify and provide secure access to NetApp resources.For accounts that did not pre-register (prior to Dec 3), access to your NetApp data may take up to 1 hour as your legacy NSS ID is synchronized to the new B2C identity.To learn more, read the FAQ and watch the video.Need assistance? Complete this form and select “Registration Issue” as the Feedback Category.
Suppose if your qtree size is 100g then your volume size would be 120g( with 20% snapreseve calcuation)
Then if you are going to increase qtree size to 200g then your volume size needs to be calculated as 240. But with your formula it would be 260, that's why we need to calculate the snapreserve on qtree size as well while deducting it.
Let me know if I'm missing any basic thing here..!