I opened this product new out of the box but there is only 3.63 TB of available space. I would think it would be closer to 4.0 TB. Does
This seem correct? null

Question

I opened this product new out of the box but there is only 3.63 TB of available space. I would think it would be closer to 4.0 TB. Does
This seem correct? null

Samsung · Accepted Answer

Space:

Samsung drives adhere to the IDEMA standard of advanced formatting, which will result in the drive appearing as less than the listed size. This is a common industry-wide standard.

The amount of space that appears to be "missing" is in fact used by the drive/card for storing firmware, metadata and spare blocks. Your operating system (Windows, Linux, etc.) will also affect the usable space -- different operating systems will use different amounts of space to store their metadata. Consequently, formatted space will always be less than unformatted space.

You can look IDEMA up online for more technical details about this standard, which is established by The International Disk Drive Equipment and Materials Association.

- Samsung Memory

JimmyCrackcorn · Answer

Do the math: 4 x 10^12 bytes / (2^1024)^4 = 3.63 TB
I don't understand why you have a problem.

JimmyCrackcorn · Answer

Yes it is absolutely correct. Go back decades ago to understand memory addressing. If we go back to say the late 70s and look at the Z80 microprocessor, for example, it had a 16-bit address line. In decimal, that's 0 to 65,535 or 65536 different addresses. And of course 65536 is just 2^16. Now 2^10 is 1024 which is close to 1000, so 2^10 bytes was defined as 1 KB (one kilobyte; in the metric system kilo means 1000, but for convenience, when used for memory size the 2^10 definition is used). Thus that 65536 bytes is 64 KB. As memory sizes grew, each higher prefix was 1024 times greater rather than 1000 times greater. So 1 MB is 1024 KB, 1 GB is 1024 MB, 1 TB is 1024 GB, and so on. When your computer reports the capacity of hard drives, thumbdrives, SSD, etc. it uses this system. Marketing departments, however, report the capacities using the 1000 factors. So the 4TB is 4 trillion bytes or 4x10^12 bytes. Divide that by 1024 to get how many KB (according to the memory addressing scheme), divide again by 1024 to get how many MB, and so on.
4x10^12/(2^10)^4 = about 3.638 TB.

Answer

I just bought it and mine also shows 3.63 TB which is obviously nowhere near 4TB. I reformatted and it didn’t change. Anyone know if this is  correct and if not how to fix this?

Isaac · Answer

Mine was showing just under 4 TB. To me 3.63 does not seem right. That means that almost 400 GB was already used up. I would definitely check into that or maybe get a new one.

TIMELORD1928 · Answer

Its supposed to be 4T, just revamp it and it be okay

“I opened this product new out of the box but there is only 3.63 TB of available space. I would think it would be closer to 4.0 TB. Does This seem correct?”

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