I am also experiencing this problem when dual booting with Windows 10 and Ubuntu 15.10 , which supposedly has the fix implemented in /etc/init.d/mdadm-waitidle.
Whenever I reboot the system from one OS to another, even if the raid1 array appears to be in "normal" status in the bios POST, the array gets re-verified by either mdadm or win intel rapid storage manager tool. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1320402 Title: mdadm resyncs imsm raid in "Normal" state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1320402/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs