Narrative account of the August 2026 migration: why fourteen small agents
cost more than seven large ones, the rebuild failures that made the first
pair take three times its budget, and the faulty Ethernet cable behind
them that had been silently downshifting a host to 100 Mbit for nine days.
Also records the operational gotchas worth knowing: Longhorn evicts at
disk level rather than node level, draining does not preserve replicas,
rebuilds can report progress while transferring nothing, GitOps selfHeal
reverts temporary drain workarounds, and cloud images panic on the first
boot after a resize.
Updates node counts in README and storage.md, which the post would
otherwise contradict, and adds a deep-dives index so the docs/ pages are
reachable from the README at all.
