#Zfs
A fifth disk, then a disk replaced
Full burn-in of a second-hand disk, RAIDZ2 expanded from 4 to 5 disks without downtime, then a disk with growing bad sectors replaced, with no free bay.
ADR 0019: Encrypted off-site backups, focused on what cannot be replaced
Every night, VM exports, photos and files leave encrypted for a 1 TB remote storage; anything that can be copied again from its source is left out.
ADR 0001: The Dell T330 dedicated to storage
The T330 becomes the storage machine (ZFS RAIDZ2, PBS); compute moves to a dedicated cluster.
Runbook: verifying and restoring backups
Checking the off-site backup, restoring a file or a VM, rebuilding after losing the server.