The Snapshot That Travels

The Unix Way — Episode 13 At three in the morning, on a production cluster with state measured in terabytes, the question is not which backup tool you have. It is whether any of them will finish before breakfast. The usual answer involves three tools: one for backup, one for replication, one for versioning. Each excellent in isolation, and architecturally in each other's way once state crosses the point where tarballs and rsync stop being a reasonable proposition. FreeBSD's answer has been sitti