Microsoft 365 provides a mature and highly available platform for enterprise email, file sharing, collaboration, meetings, and communication. Exchange Online, OneDrive for Business, SharePoint Online, and Microsoft Teams include resilient infrastructure and valuable built-in capabilities such as recycle bins, version history, retention policies, and service-level redundancy.
The need for a disaster recovery strategy is no longer in question. The real challenge is determining how critical systems can be restored after an outage, cyberattack, infrastructure failure, or physical disaster - and how much downtime and data loss the organization can tolerate.
Traditional disaster recovery usually requires a second location with servers, storage, networking, security systems, and software licenses. This secondary infrastructure must remain synchronized with production, receive regular updates, maintain enough capacity, and be tested continuously.