[imcritic]

How does a disaster recovery plan with it look like?

[tadfisher]

There is never a disaster; reading from /dev/null will return the same result before and after any external event.

[wolrah]

/dev/null is globally redundant across almost every *nix-ish system in operation. Just reinstall your software on whatever is convenient and all the same data will be there.

[mpyne]

    sudo mknod /dev/null c 1 3 && sudo chmod 666 /dev/null

might do it on many systems