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Periodic Snapshot Tasks – core-pool

Quick-view matrix

Dataset Schedule Retention
core-pool/lab Daily 00:00 2 weeks
core-pool/agency Daily 00:00 2 weeks

Snapshots are read-only, space-efficient checkpoints—ideal for ransomware roll-back and replication.

Snapshot task list

GUI configuration

  1. Data Protection ▸ Periodic Snapshot Tasks ▸ Add
  2. Dataset → core-pool/lab • Recursive ✔
  3. Schedule → preset Daily 00:00
  4. Lifetime → 2 weeks
  5. Save and Enable.
  6. Repeat for core-pool/agency.

Tip: staggering start times (e.g., 00:05, 00:10) avoids disk-IO spikes on large pools.

CLI helpers

# Take an ad-hoc snapshot
zfs snapshot core-pool/lab@manual-backup-$(date +%F)

# List the newest five snapshots
zfs list -t snapshot -o name,creation -s creation | tail -5

# Delete old snapshots
zfs destroy core-pool/lab@manual-backup-$(date +%F -d '-2 weeks')