Comment 3 for bug 1832906

it appears that this is coded, but not working properly:

root@CMOOSCHSTUP7305:/etc/cron.d# cat /var/lib/nagios/mdadm.out
OK: /dev/md1 ok

root@CMOOSCHSTUP7305:/etc/cron.d# mdadm --detail /dev/md1
/dev/md1:
        Version : 1.2
  Creation Time : Thu Oct 18 17:41:01 2018
     Raid Level : raid10
     Array Size : 7812235264 (7450.33 GiB 7999.73 GB)
  Used Dev Size : 3906117632 (3725.16 GiB 3999.86 GB)
   Raid Devices : 4
  Total Devices : 4
    Persistence : Superblock is persistent

  Intent Bitmap : Internal

    Update Time : Mon Oct 28 18:46:34 2019
          State : active, degraded, recovering
 Active Devices : 3
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 1

         Layout : near=2
     Chunk Size : 512K

 Rebuild Status : 13% complete

           Name : CMOOSCHSTUP7305:1 (local to host CMOOSCHSTUP7305)
           UUID : fed3a645:1f742fd3:1685dda5:71794407
         Events : 750593

    Number Major Minor RaidDevice State
       0 8 98 0 active sync set-A /dev/sdg2
       1 8 114 1 active sync set-B /dev/sdh2
       2 8 146 2 active sync set-A /dev/sdj2
       4 8 162 3 spare rebuilding /dev/sdk2

This should show Critical/degraded.