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Hard drives short weight, two reasons needs to be considered

2021-12-07

Hard drives short weight, two reasons needs to be considered

You must be very angry at the vendor who gave short weight in the supermarket. However, there is one “short weight” which is often neglected, that is the hard disk capacity in the computer or tablet. There is only about 930GB for 1TB HDD after formatting. And for the 500GB SSD, it is only marked by 480GB. When inquire of the customer service, you will be told that it is normal. 

The reduction of the Hard Disk is mainly caused by two factors. When manufacturing the hard drives, the manufacturers generally use 1000 as the standard for statistics, eg: 1000MB is 1TB, 10000GB is 1TB, which is more convenient for manufacturing management. The operating system is calculated using the standard thousand-bit concept in programming, which is 1024 (2 to the 10th power), so it starts from the most basic Byte.  For example, the difference between 1kB is 1000 and 1024, and 1MB is 1000×1000 and 1024×1024... The larger the capacity, the larger the cumulative error, and the difference to the TB level is close to 10%. 

As for another type of capacity shortage, it is actually a "back up" that manufacturers have prepared for users in consideration of storage security. For example, open the boot disk of Windows 10 to see the capacity (if you divide the zones, add them together), you will definitely find that even according to the standard of 1000 carryies, its capacity is not enough! 

The lack of capacity on this disk is actually a hidden partition left by Windows 10, which stores some data needed for system operation and recovery. We just need to right-click the start menu and select "Disk Management" to see these hidden partitions. In the SSD, there is also reserved space left at the hardware level, that is, OP (Over-provisioning) space. Its size determines whether the SSD with the same storage chip is 512GB, 500GB, or 480GB. These reserved spaces can be used to make up for the capacity shortage caused by memory chip defects, optimize the storage process, rescue data after the end of life, etc. The designs of various manufacturers and even different models may have certain differences, and they are not compatible with the quality and positioning of SSDs. There is no necessary connection. 

From this point of view, in fact, most of the so-called insufficient hard disk capacity is really normal. There is only one thing to note, that is, many friends buy newer and faster hard disks. After the new system disk, they will use the old disk for general storage or mobile storage. At this time, don’t forget to repartition to release the hidden in the system disk partition.

Shenzhen Higole manufucture the rugged tablet, industrial tablet, mini all in one touch pc, etc. The hard disk may also have such problems. When encouter such problem, please kindly note it is normal and contact us for further information.

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