Automating Fault Diagnosis and Backup

Hard disks have a period when they are prone to failure. Anticipating this and backing up data is an effective method to avoid loss.

Since drives often fail while still showing normal S.M.A.R.T. values, this cannot be used as a reliable indicator. Even if S.M.A.R.T. is normal, it’s crucial not to be overly optimistic and to back up your data.

Locations of Various Files

My Documents & Desktop Locations

Data in My Documents My Pictures, Favorites, and similar files are located in this hierarchy.
マイドキュメントのデータ群 マイピクチャやお気に入りなどがこの階層に存在します。

Windows Vista / 7 / 8 / 8.1 / 10 / 11:
C Drive → Users → (Username) → Documents, Pictures, AppData
Windows 2000 / XP:
C Drive → Documents and Settings → (Username) → MyDocuments
Windows 95 / 98/ 98SE / Me:
C Drive → MyDocuments
Windows Vista / 7 / 8 / 8.1 / 10 / 11
Cドライブ → Users → (ユーザ名) → ドキュメント, ピクチャ, AppData
Windows 2000 / XP
Cドライブ → Documents and Settings → (ユーザ名) → MyDocuments
Windows 95 / 98/ 98SE / Me
Cドライブ → MyDocuments

About Desktop Data

Windows Vista / 7 / 8 / 8.1 / 10 / 11:
C Drive → Users → (Username) → Desktop
Windows 2000 / XP:
C Drive → Documents and Settings → (Username) → Desktop
Windows 95 / 98/ 98SE / Me:
C Drive → Windows → Desktop
Windows Vista / 7 / 8 / 8.1 / 10 / 11
Cドライブ → Users → (ユーザ名) → Desktop
Windows 2000 / XP
Cドライブ → Documents and Settings → (ユーザ名) → Desktop
Windows 95 / 98/ 98SE / Me
Cドライブ → Windows → デスクトップ

Situations Where HDD/SSD/NVMe Are Prone to Damage

1,Vibration During HDD Power On/Off

Powering on and off is when they are most vulnerable. The motor uses a lot of power when starting to spin, so a lack of power is critical. The spin start becomes unstable, leading to repeated retries.


Just tipping over from a standing position can cause failure. However, recent drives with head unload technology are safe from damage if stationary. SSDs are more shock-resistant and will function unless exposed to continuous strong impacts.

3,Power Cut During HDD/SSD/NVMe Access
3,HDD/SSD/NVMe アクセス中の電源切断

This can cause bad sectors, head crashes, and firmware damage (including SSD/NVMe). Avoid this except in emergencies.

4,Static Electricity on HDD/SSD/NVMe
4,HDD/SSD/NVMe 静電気

Touching the electronic control board with hands charged with spark-level static electricity will directly lead to damage.

5,Heat for HDD/SSD/NVMe

Heat is an enemy of precision equipment. Cooling extends its life. The fan used for cooling is also a consumable and requires regular replacement.

6,Moisture for HDD/SSD/NVMe

Moisture is harmful. For HDDs, water entering through the hole can damage the platter system. Some models contain desiccants like silica gel inside. Helium-filled drives do not have such holes and are completely sealed.

7,Atmospheric Pressure Changes for HDD
7,HDD 気圧の変動

Large low-pressure systems like typhoons have a significant impact. HDDs are not completely sealed; they have holes for air exchange. Helium-sealed drives are not affected by these changes.

8,Power Shortage for HDD/SSD/NVMe
8,HDD/SSD/NVMe 電力不足

Connecting more devices than the power supply can handle or poor connection with power connectors can lead to physical damage. For example, repeated spin-up retries or abnormal head movements. It can lead to data loss due to the destruction of the magnetic material. These issues are common with cheap power supplies and external cases, posing a hidden danger.

Optimal Backup Timing

High heat and humidity in summer are the worst conditions. It’s safe if the room temperature is controlled with air conditioning, but leaving the system unattended for long periods, like when out, is dangerous. Always add HDD cooling. Cooling the bottom of the spindle motor is effective. The rainy season is always a warning sign. Perform a complete backup before entering this period. Aim for late April to early May, ideally during Golden Week. Regular backup of constantly updated data is very important.

Reducing Power-On Frequency

This method operates with the power on, minimizing the number of spin-ups. It has the advantage of minimizing temperature fluctuations by avoiding high-load operations like spin-up/spin-down and combining it with cooling. Though motor wear is a concern, it lasts much longer compared to other components. Maintaining a constant rotation speed to protect the bearing is best. Cooling the bottom of the motor helps protect the bearing.

Storage Failure Prediction

We developed storage failure prediction that automatically calculates and monitors various fluctuations and potential failure factors.

Latest SSD/NVMe Equipped with SORA blockchain
最新のSSD/NVMeにはSORA blockchain

We protect your valuable SSD/NVMe data with statistical processing utilizing blockchain technology.