sake:/home/tim# badblocks -s -w /dev/sdg1
Testing with pattern 0xaa: done
Reading and comparing: done
Testing with pattern 0x55: done
Reading and comparing: done
Testing with pattern 0xff: done
Reading and comparing: done
Testing with pattern 0x00: done
Reading and comparing: done

SCSI device sdg: 390721968 512-byte hdwr sectors (200050 MB)
sdg: Write Protect is off
sdg: Mode Sense: 00 3a 00 00
SCSI device sdg: drive cache: write back
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
ata8: EH complete
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
ata8: EH complete
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
ata8: EH complete
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
ata8: EH complete
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
ata8: EH complete
ata8.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata8.00: (BMDMA stat 0x0)
ata8.00: tag 0 cmd 0x25 Emask 0x9 stat 0x51 err 0x40 (media error)
sd 7:0:0:0: SCSI error: return code = 0x08000002
sdg: Current: sense key: Medium Error
    Additional sense: Unrecovered read error - auto reallocate failed
end_request: I/O error, dev sdg, sector 378286480
ata8: EH complete
SCSI device sdg: 390721968 512-byte hdwr sectors (200050 MB)
sdg: Write Protect is off
sdg: Mode Sense: 00 3a 00 00
SCSI device sdg: drive cache: write back
SCSI device sdg: 390721968 512-byte hdwr sectors (200050 MB)
sdg: Write Protect is off
sdg: Mode Sense: 00 3a 00 00
SCSI device sdg: drive cache: write back
SCSI device sdg: 390721968 512-byte hdwr sectors (200050 MB)
sdg: Write Protect is off
sdg: Mode Sense: 00 3a 00 00
SCSI device sdg: drive cache: write back
 sdg: sdg1