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template: mdstat_last_collected
      on: md.disks
    calc: $now - $last_collected_t
   units: seconds ago
   every: 10s
    warn: $this > (($status >= $WARNING)  ? ($update_every) : ( 5 * $update_every))
    crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
    info: number of seconds since the last successful data collection
      to: sysadmin

template: mdstat_disks
      on: md.disks
   units: failed devices
   every: 10s
    calc: $down
    crit: $this > 0
    info: number of devices in the down state. \
          Any number > 0 indicates that the array is degraded.
      to: sysadmin

template: mdstat_mismatch_cnt
      on: md.mismatch_cnt
   units: unsynchronized blocks
    calc: $count
   every: 60s
    warn: $this > 1024
   delay: up 30m
    info: number of unsynchronized blocks
      to: sysadmin

template: mdstat_nonredundant_last_collected
      on: md.nonredundant
    calc: $now - $last_collected_t
   units: seconds ago
   every: 10s
    warn: $this > (($status >= $WARNING)  ? ($update_every) : ( 5 * $update_every))
    crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
    info: number of seconds since the last successful data collection
      to: sysadmin