Return a hash containing metadata about a specific Linux MD device, based on the
output of 'mdadm -DY'.
---
daemon/md.c | 78 ++++++++++++++++++++++++++++++++++++++++
generator/generator_actions.ml | 31 ++++++++++++++++
regressions/test-mdadm.sh | 60 ++++++++++++++++++++++++++++++-
src/MAX_PROC_NR | 2 +-
4 files changed, 169 insertions(+), 2 deletions(-)