Keep it running no, keep it secure yes. That is true of any production system, regardless of vendor, or should be.
Your system/business setups simply reflect this, either through clustering or planned outages.
Not sure why I'm providing a rational opinion to a snarky jab at Mircosoft, but imo, they have made fantastic progress on the security front over the past decade.
I find that updating a Windows server often requires a reboot, while other systems can usually get away with restarting the service that is being patched.
Your system/business setups simply reflect this, either through clustering or planned outages.
Not sure why I'm providing a rational opinion to a snarky jab at Mircosoft, but imo, they have made fantastic progress on the security front over the past decade.