Hi, The first patch adds the support for fail the last device in raid1/10 array, and other two patches fix issue that the new added disk is set with In_sync even it doesn't complete the synchorization of data. Thanks, Guoqing Guoqing Jiang (3): md: allow last device to be forcibly removed from RAID1/RAID10. md: don't set In_sync if array is frozen md: don't call spare_active in md_reap_sync_thread if all member devices can't work drivers/md/md.c | 45 +++++++++++++++++++++++++++++++++++++++++---- drivers/md/md.h | 1 + drivers/md/raid1.c | 6 +++--- drivers/md/raid10.c | 6 +++--- 4 files changed, 48 insertions(+), 10 deletions(-) -- 2.17.1