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Discussion Starter · #1 ·
Hello friends!

Recenttly I've bougt an external USB 3.0 HDD - Samsung 3TB D3 Station (model: STSHX-D301TDB).

This device has a 3TB Seagate ST3000DM001 (Barracuda 7200.14 series) inside.

Because I don't need so much storage space on an external drive i want to swap the HDD inside with a 1TB from my desktop and install the 3TB drive inside my desktop, where it's needed and it's more secure.

I found this step by step guide for the disassembly of the external drive, and i managed to remove the HDD from the plastic case without any damage to the case, so I still can reassemble the drive in case of waranty issues
biggrin.gif
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So far so good, but after I installed the 3TB HDD inside my computer over SATA 3, I found that the System doesn't recognize the format on the drive and I get a notification that the dive is unformatted and I need to format the drive.

And this is how it looks in Disk Management


It seems like there is a special formatting on the drive (I guess related to the 2.2+TB drive problem and GPT paritioning???) that it's SATA 3 to USB controller is also meant to understand and manage... but I don't have enough knowledge to understand what happens behind the scenes....

If I replace the HDD in it's case and use it's SATA 3 to USB 3.0 controller and connect it over usb, I get access to the entire storage space ~2,72TB, and I can see the data stored on it:




My biggest concern is what would happen if I install a different HDD (1TB) in this external drive case? I don't want to lose data. Will that controller mess with the partitions of the smaller drive?


It's not a problem to format the 3TB drive to use it in the desktop pc, because I havent't stored any data on it, besides it's 500MB of preloaded software. But will it be possible then to acces it using the sata to usb controller if i want to restore the drive back in it's original case?
 

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USB does not have problem with handling drives over 2.2TB, but the operating system has problems handling anything that is over 2.2TB. If you have a 32-Bit operating system you will have problems. The drive must support UEFI for booting the 3TB drive otherwise you will have to format the drive to GPT to be able to use all the space on the drive.
 

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Discussion Starter · #3 ·
Quote:
Originally Posted by anoob View Post

USB does not have problem with handling drives over 2.2TB, but the operating system has problems handling anything that is over 2.2TB. If you have a 32-Bit operating system you will have problems. The drive must support UEFI for booting the 3TB drive otherwise you will have to format the drive to GPT to be able to use all the space on the drive.
I don't need to boot from this drive, and I have UEFI compatibility, and 64 bit OS.

My question was what would happen if I connect a different drive to the SATA to USB controller of the external drive, considering the unusual formatting of the original drive. Will the controller reformat or modify the partitions on the other drive, if it is only 1TB so GPT is not needed?
 

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USB doesn't have a problem with large drives, 1TB should work fine like any other enclosure if it doesn't need encryption like the Western Digital drives. If the enclosure's onboard card needs encryption then you will have to reformat the drive to work with the enclosure.
 

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Discussion Starter · #5 ·
I don't know if it needs encryption... all i know is that the original 3TB drive has 3 physical partitions that are formatted as you see in the Disk Management photo above, but using it through the usb card of the enclosure, it appears in windows as a single partition of 2.72TB on NTFS file system
 
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