zfsonlinux provides a native Linux kernel port of the ZFS filesystem so that ZFS may run natively on Linux. zfsonlinux is very different then ZFS-fuse which provides ZFS on top of a userspace filesystem.
zfsonlinux is hosted on zfsonlinux.org
As a longtime mdadm user is was just experiencing a disk error and remembered that I configured a Auto Mail reporting for mdadm on disk errors.
Therefore i just had to insert my Mail address inside ...