Monitor "SMART Health Status"

[gschoenberger]

Under some circumstances SMART adds a health status to the output of smartctl.
Possible solution:

• Check if "SMART Health Status" is present
• If present and != OK -> set custom attribute 1025 to Critical/Warning

Some first useful information:

• SAS drive: Support for SAS drives #61
• https://sourceforge.net/p/smartmontools/mailman/message/35510355/