Host software RAID disk failure warning
MD RAID array {{ $labels.device }} on {{ $labels.instance }} needs attention.
>>>
(
{state="failed"} > 0)
The query looks at the node_md_disks metric for disks with the label state="failed"; if the count of such disks is greater than zero on a host, the alert triggers, indicating that the RAID array on that instance has at least one failed disk.
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