Smartd: Device /dev/sda: using '-d sat' for ATA disk behind SAT layer.
 

I have been receving this smartd error in my logs:
This system is identical to the 20+ other systems I have and I have never seen this smartd error before. Is this something to worry about?

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**Unmatched Entries**
Problem creating device name scan list
Device /dev/sda: using '-d sat' for ATA disk behind SAT layer.
Problem creating device name scan list
Device /dev/sda: using '-d sat' for ATA disk behind SAT layer.
Problem creating device name scan list
Device /dev/sda: using '-d sat' for ATA disk behind SAT layer.
Problem creating device name scan list
Device /dev/sda: using '-d sat' for ATA disk behind SAT layer.

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