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This Read Device Identity failed: scsi error unsupported scsi opcode and this SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 means your drive isn't reacting properly to some SCSI commands. With a drive that supports SMART properly, it should look like this: $ sudo hdparm ...


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