• Raw read data rate
  • thourghput performance
  • Spin up time
  • start/stop count
  • reallocated sectors count *
  • seek error rate
  • seel tome performance
  • power on hours
  • Spin up retry count
  • Drivepoercycle count
  • unknown attributes**
  • G-sense error rate
  • Power on retract count
  • Load/unload cycle count
  • internal temperature
  • Hardware ECC Recovered
  • Reallocation Error Count *
  • Current pending sector count
  • uncorrectable sector count
  • Ultra DMA CRC error count
  • Load/unload retry count
  • Free fall protection
* values I would put a lot of weight on.
** There are often parameters reported that are proprietary and otherwise unknown


"All you've got to do is own up to your ignorance
honestly, and you'll find people who are eager to
fill your head with information"
--Walt Disney