Why 99.9% Uptime Isn’t Enough: Choosing the Right Multi-Site Management Approach

https://victor-wiki.win/index.php/Why_Short_Backup_Retention_Breaks_Agencies_and_Freelancers_Managing_10-150_WordPress_Sites_-_and_How_to_Stop_the_Firefighting

Everybody loves a vendor that promises 99.9% uptime. It sounds reassuring until you translate that decimal into real hours and start multiplying by the number of sites, services, and business processes that depend on those systems