1) Power off the server 2) Unplug all of the cables 3) Enclose the server in a lead box 4) Encase the box in concrete Repeat steps 3-4 as necessary 5) Bury

1) Power off the server 2) Unplug all of the cables 3) Enclose the server in a lead box 4) Encase the box in concrete Repeat steps 3-4 as necessary 5) Bury the box in a mile-deep hole at the bottom of the Mariana Trench 6) Don't tell anyone where you put the server.