Help debugging DMA_READ errors

Mike Tancsa mike at
Tue Sep 16 19:34:12 UTC 2008

At 02:54 PM 9/16/2008, Jeremy Chadwick wrote:

>However, there's no sign of DMA errors in the SMART log.  I'm not sure
>what to make of that; I really would expect there to be some.

Would not bad cables (or trays) be consistent with symptoms like that 
? i.e. the OS sees errors, but when we ask the drive, it says, "what 
errors".  I am sure there are other things that could cause this, but 
in the past I would start with the cables and or trays.


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