disk or cable error? (CAM status: ATA Status Error)

[ixbug at riseup.net]

tech-lists:
> On 26/08/2018 16:01, ixbug at riseup.net wrote:
>> Do any of these errors provide hints as to whether this is a disk
>> error affecting both at the same time or broken cable? (both disks
>> are connected to the mainboard via the same cable)
> 
> these values:
> 
> 5 Reallocated_Sector_Ct
> 196 Reallocated_Event_Count
> 197 Current_Pending_Sector
> 198 Offline_Uncorrectable
> 
> are all zero for both disks, so if these remain zero after a successful long test with *no LBA errors* then that would seem to me at least to indicate there's no problems with the disks themselves. If, in the face of those results, this persisted:
> 
>> (ada1:ahcich1:0:0:0): WRITE_FPDMA_QUEUED. ACB: 61 08 90 a4 aa 40 1d 00 00 00 00 00
>>  (ada1:ahcich1:0:0:0): CAM status: ATA Status Error
>>  (ada1:ahcich1:0:0:0): ATA status: 41 (DRDY ERR), error: 10 (IDNF )
> 
> then yeah I'd say bad cable/bad interface


thanks for your input.
(long test is running..)