>From the man page: When creating a RAID5 array, mdadm will automatically create a degraded array with an extra spare drive. This is because building the spare into a degraded array is in general faster than resyncing the parity on a non-degraded, but not clean, array. This feature can be overridden with the --force option.
I admit that I don't understand this at all (spotted this bug while looking for something else), but thought it might be helpful. -- mdadm uses one more spare that specified while creating a RAID5 array https://bugs.launchpad.net/bugs/491377 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs