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HDD too high - Demical data fields

Tags:
  • External Storage
  • Hard Drives
  • Storage
  • Laptops
  • Hitachi
  • Shutdown
Last response: in Storage
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October 11, 2014 5:03:33 AM

Hitachi, HDD laptop internal storage
- Too high "Demical data fields" : Unsafe shutdown, load cycle count and temp
-

Seagate, External storage
- Too high "Demical data fields" : Raw Read error rate, seek error rate, airflow temp, life time write/read
-

But both HDD, Health/Performance still Excellent. I have to worry about this?

Checked by HDD Sentinal, HD tune, crystaldisk - Smart tabs

More about : hdd high demical data fields

a c 360 G Storage
a b D Laptop
October 12, 2014 7:30:57 AM

Status shows 'ok' for all SMART descriptions, there is nothing to be concerned about.
Many people misunderstand SMART readings and values, to many people the figures are meaningless.
If you want to check a hard drive's health properly in a way which can be understood by all, use the drive maker's own diagnostic software, downloadable from their respective websites.

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Best solution

a c 327 G Storage
a b D Laptop
October 12, 2014 12:28:49 PM

The raw values make more sense in hexadecimal. CrystalDiskInfo and HD Sentinel both use this format by default.

The following article is my attempt to understand Seagate's counterintuitive SMART attributes:

Seagate's Seek Error Rate, Raw Read Error Rate, and Hardware ECC Recovered SMART attributes:
http://www.users.on.net/~fzabkar/HDD/Seagate_SER_RRER_H...

For example, the seek error rate is indicating that there have been 716006 seeks without error. When the drive records 1 million seeks, the Current normalised value will settle down at 60, if there have been no seek errors.

The AirFlow Temperature and Temperature attributes are both reporting the same sensor. In fact the AirFlow Temperature is better described as Temperature Difference from 100, ie ...

AirFlow Temperature = 100 - Temperature (71 = 100 - 29)

The raw value is 488439837, which in hex is 0x1D1D001D.

http://www.google.com/search?q=488439837+in+hex

The hex number consists of 3 components, 0x1D (= 29), 0x1D, 0x1D. These represent the maximum, minimum, and current temperature values for the current power cycle.

http://www.google.com/search?q=0x1D+in+decimal

The Lifetime Writes and Reads refer to the number of sectors written and read. If you multiply the numbers by 512, then that should reflect the number of bytes.

The temperature for the Hitachi drive (983073 = 0xF0021) is suggesting that the current temperature is 33C (= 0x21) and that the minimum was 15C (= 0x0F).

http://www.google.com/search?q=983073+in+hex

The Unsafe Shutdown Count appears to be 17 (= 0x11) or 25 (= 0x19) rather than 1638417.

http://www.google.com/search?q=1638417+in+hex

The Load Cycle Count (65767) appears to be real. Notice that the Current value has dropped by 6 points (100 - 94). This suggests that the drive loses 1 point for approximately 10,000 load cycles, which in turn would suggest that the drive would lose all 100 points after 1 million cycles. Since the drive has recorded 12061 Power On Hours, then it appears that the drive is parking about 5 times per hour. I don't see this as a problem, but you may be able to stop this behaviour using an application such as quietHDD.
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