The thread http://ubuntuforums.org/showthread.php?p=8407182 mentioned on https://wiki.ubuntu.com/ReliableRaid talks about /dev/md_d* type autocreated devices, as a symptom of "un-defined/un-white-listed" arrays with ubuntu's hotplug setup.
The thread http:// ubuntuforums. org/showthread. php?p=8407182 mentioned on https:/ /wiki.ubuntu. com/ReliableRai d talks about /dev/md_d* type autocreated devices, as a symptom of "un-defined/ un-white- listed" arrays with ubuntu's hotplug setup.