The two sides are in the process of finalizing the deal that would bring Minter to Michigan after just one season at Vanderbilt. Previously, Minter worked four seasons in the NFL for the Baltimore Ravens under Harbaugh's brother, John Harbaugh.
Minter, 38, was a defensive assistant for three seasons in Baltimore before coaching the team's defensive backs in 2020. He then joined Clark Lea's staff at Vanderbilt as defensive coordinator and safeties coach.
Minter, the son of former Cincinnati head coach Rick Minter, worked at Cincinnati as a graduate assistant under Brian Kelly from 2007 to '08.
Jim Harbaugh, who interviewed last week for the Minnesota Vikings' head-coaching job, was looking for a replacement for Mike Macdonald, who left after one season to be the Ravens' defensive coordinator.
With his defensive coordinator position filled, Harbaugh now sets his sights on hiring an offensive coordinator after Josh Gattis left earlier this week to take the same position at Miami.