Capacity boundary
Current data + retained change
The baseline keeps the capacity basis inspectable. Product-specific deduplication, compression, versioning, and consistency remain explicit destination checks.
Home Backup Planner
Plan the restore before choosing the backup.
Make capacity, copy topology, recovery-point exposure, recovery-time pressure, and transfer limits visible together—before a device, subscription, or second NAS becomes the decision.
Failure boundary
Local and offsite are separate decisions
A local recovery copy and an independently located copy solve different recovery pressures; neither label substitutes for the other.
Restore boundary
Transfer rate turns RTO into a check
Use a deliberately reduced effective rate, then compare the priority restore set with the time you can actually accept.
Continue from an existing system
Bring the same recovery boundary into NAS and Docker.
Storage capacity, self-hosted application state, and personal-device data often share a destination but need separate restoration and dependency checks.