Retirement Planner
Five questions. One plan for this device.
Nothing you choose here is stored. The result names the NIST SP 800-88r2 method to aim for, why, the maker's documented erase, and a four-stage checklist you can print.
Your plan appears here
Answer the five questions. For a server or NAS, plan each drive on its own: they can differ.
The planner applies four plain rules drawn from NIST SP 800-88r2; see how it decides.