HDDSCAN results, please advise

[Annisman*]

I have 10 hdds total, using HDDSCAN under the 'SMART' diagnostics test - 4 of them are showing what appears to be errors. Can someone with knowledge of this tool please explain what they mean and if drive failure is imminent.
The first pic is my C drive, an old 120gig Mushkin SSD, the last 3 pics are all Seagate 3TB drives.

https://ibb.co/jW3TdDb

https://ibb.co/9ZBpTXb

https://ibb.co/cxmzwgN

https://ibb.co/26Z5rtD

 

[fzabkar]

ISTM that the SATA downshift errors are the result of the drives switching to 3Gbps from 6Gbps, or to 1Gbps from 3Gbps.

Seagate SMART Attribute Specification:
http://t1.daumcdn.net/brunch/service/user/axm/file/zRYOdwPu3OMoKYmBOby1fEEQEbU.pdf

Normal SATA SMART Attribute Behavior (Seagate):
http://t1.daumcdn.net/brunch/service/user/axm/file/Vw3RJSZllYbDc86ssL6bofiL4r0.pdf

As for the SSD, the SMART attributes appear to be OK. HDDScan doesn't appear to understand how to interpret them correctly.

This Kingston document explains the meanings of the attributes:

http://media.kingston.com/support/downloads/MKP_306_SMART_attribute.pdf