Zero Downtime Required To Patch SharePoint Server 2016

Zero downtime patching is a method of patching and upgrade developed in SharePoint Online. It was made to let administrators patch the service at the same time as users kept using their subscriptions. In other words, this tested method is designed to allow patching while people actively work with their files, and search crawls and renders results, on the SharePoint Server farm. That’s what’s meant by ‘zero down time’
Continue here>>