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Old 06-17-2011, 03:46 PM   #1
pheebs
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sg_utils identify_device and read/write buffer commands


Hi

I used sg_sata_ident to get the IDENTIFY_DEVICE output on my SATA drive. The output shows the drive as being able to support READ_BUFFER/WRITE_BUFFER. However, when I issue sg_read_buffer /dev/sda, I get an error - DRIVER_SENSE - Invalid command operation supported.

What does this indicate?
 
Old 06-20-2011, 03:21 PM   #2
smallpond
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sg_read_buffer sends a SCSI read buffer command. I don't think that's the same as a SATA read buffer.
 
  


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