Prior to joining the Predators, Korn worked for the Buffalo Sabres from 1991-98. During that time, Dominik Hasek won the Vezina Trophy four times and the Hart Trophy as NHL MVP twice. Hasek and Grant Fuhr won the Jennings Trophy for the 1994-95 season.
Korn, 60, has worked 41 years in hockey, 27 in the NHL. In addition to Holtby and Hasek, Pekka Rinne of the Predators was a two-time Vezina finalist under Korn (2010-12).
The Islanders allowed the most goals in the NHL last season (293, 3.57 per game), the most since the Philadelphia Flyers allowed 297 in 2006-07.
New York hired Piero Greco as its goaltending coach Wednesday. Greco worked the past four seasons in the same position with Toronto of the American Hockey League.