Hey all, So the RAID5 which I upgraded to RAID6 was humming along all week just fine (I did the change last weekend) and this weekend I got this: WARNING: mismatch_cnt is not 0 on /dev/md127 The array seems happy and clean: > /dev/md127: > Version : 1.2 > Creation Time : Tue Aug 23 03:06:46 2011 > Raid Level : raid6 > Array Size : 2930276352 (2794.53 GiB 3000.60 GB) > Used Dev Size : 976758784 (931.51 GiB 1000.20 GB) > Raid Devices : 5 > Total Devices : 6 > Persistence : Superblock is persistent > > Intent Bitmap : Internal > > Update Time : Sun Sep 25 21:42:55 2016 > State : clean > Active Devices : 5 > Working Devices : 6 > Failed Devices : 0 > Spare Devices : 1 > > Layout : left-symmetric > Chunk Size : 512K > > Name : :BigRAID > UUID : 97b17840:3eaff079:d8e384d0:bfdbda42 > Events : 905701 > > Number Major Minor RaidDevice State > 6 8 81 0 active sync /dev/sdf1 > 1 8 33 1 active sync /dev/sdc1 > 5 8 49 2 active sync /dev/sdd1 > 4 8 65 3 active sync /dev/sde1 > 8 8 97 4 active sync /dev/sdg1 > > 7 8 113 - spare /dev/sdh1 I don't think I've ever got a message before about mismatch_cnt -Ben -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html