Abstract: A non-disruptive multipath device driver update system and method are provided. An additional layer device driver is provided between applications running on host system and the multipath device driver such that when an upgrade or update operation is performed on a multipath device driver, the layer device driver redirects I/O operation requests through a standby multipath device driver or an operating system disk I/O device driver. The multipath device driver may then be unloaded and updated without having to experience any downtime since I/O operation requests may still be issued by the applications and redirected around the unloaded multipath device driver. Once the multipath device driver is updated, I/O operation requests may be again routed to the updated multipath device driver and the system may operate in a normal fashion.