Hello. We recently noticed at my company that our SQL Server cluster has not had any Windows Updates for about 2 years, so the need to bring it to a current status was created. However, I am unsure of what the best practices or guidelines are when applying OS (Windows Server 2008-2012) patches to SQL servers. I've seen cases where a Windows patch degrades SQL Server performance and cases where Windows is kept up to date with patches without issues.
Could someone share their methodology for this topic? Or point me to resources where I can find related information?
Thank you.
Leroy G. Brown