Ceph and ZFS solve different storage problems. Ceph is designed for distributed storage across many servers, while ZFS focuses on maximizing performance, reliability, and simplicity on a single storage system. 

Distributed storage introduces operational and performance trade-offs. Ceph provides horizontal scalability and resilience against multiple node failures, but requires additional networking, coordination, and management overhead that can increase latency and complexity. 

Many organizations don’t need distributed storage. Modern ZFS systems can deliver exceptional capacity, performance, and availability with significantly lower operational complexity, making them a strong alternative for virtualization, databases, backups, and enterprise storage.