[okie01]

He waited for years, until it was too late. He presumably knows that she has wiped it. But this is a final warning to her, just in case she didn’t wipe it thoroughly enough.

If the server itself still exists, more than likely, the hard drive has been removed from the server and destroyed.

Then, if they're really into the sham, a new hard drive was installed and then wiped.

In other words, if they did it right, there's no chance of retrieving any data from the server.

[Cicero]

Agreed. I can’t imagine that Hillary’s advisers would allow any mistakes on wiping it. But Boner is pretty dumb. He might be trying to be helpful.