When using device-mapper-multipath, what happens if there are transient path failures?

When using device-mapper-multipath, transient path failures will result in the temporary disabling of that path. The path will be scanned at an interval that can be set in /etc/multipath.conf (the default is 10 seconds), and as soon as the path is available again it will be re-activated. During the time that the path is not available, all data will go down the second ...