external drive not recognized

Mar 29, 2019 6:30PM PDT

I had a 3TB Seagate Backup external drive quit, removed the hard drive from the enclosure and replaced it with another drive of the same model. I cannot get windows to recognise the HDD. When plugged in it shows up in disk manager but I cannot access the volume( DM shows 16000GB ). The same enclosure will allow me to access a 1TB drive. How do I get the 3 TB HDD to be useful in the external enclosure?

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Some enclosures do not support larger drives.
Mar 29, 2019 6:48PM PDT

There's that but before we do that I'd like to know how you initialized this new drive. I'm encountering folk that think it's like changing a tire on a car. Sadly there's more work. Partition the drive then format it before it shows in WFE (Windows File Explorer) or My Computer.

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Mar 30, 2019 6:50AM PDT

Its a used drive but i never thought to format with desk top first.

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large capacity
Mar 30, 2019 6:52AM PDT

the original enclosure is a 3TB. USB 3.

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Let's hope the clean drive work helps.
Mar 30, 2019 8:47AM PDT

You should start with a cleaned drive (dban or your choice.) Worth noting that in decades I've never had to use more than Windows Disk Management, GPARTED and DBAN. Any GPT "conversion" app has never been used in thousands of setups.

Also, I never use the long format as who can wait till tomorrow?

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Mar 30, 2019 2:58AM PDT

Windows disk management thinks this 3TB disk is a 16TB disk?

If you have a desktop connect this disk internal and see what disk management shows.

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internal connect
Mar 30, 2019 6:56AM PDT

yes shows file type GPF(?). I will try the format first then see what happens.

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UP date
Apr 7, 2019 7:57AM PDT

Plugged the drive into the SATA on the MB. Instant recognition by the OS 3tb ntfs. Format and place back on the enclosure adapter and plug into usb port and ... nothing. Disk manager rcognizes it as a GPT drive of 16TB. Seatools recognizes the drive properly and can perform Mtce .

I'm thinking I am missing a driver... specific to this enclosure or USB. I have an 8TB segate ext hdd that causes no issues. When I put a 1 TB hdd onto the adapter there is no problem ( except that the drive has SMART errors so i'm not willing to take the chance).

Are there drivers available for large volumes on USB? the ones i found really have not helped.

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Re: update
Apr 7, 2019 8:50AM PDT

As Bob said in the second post in this thread: some enclosures do not support larger drives.
I'd start with finding one that does. Seems a much better way than finding a driver.

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large hdd
Apr 7, 2019 3:02PM PDT

except im replacing like for like, just replacing the old noisy drive (sound like head arms out of place) with one of the same model

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That's not good enough.
Apr 7, 2019 3:08PM PDT

Seagate has a history here. You can fight it all you want but after re-reading the discussion it sounds like it's time to get a new enclosure.

Yes you could try to ask Seagate what's up with the enclosure but after years of such incidents we know not to spend time on this. But hey, some folk will.

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Are you saying
Apr 7, 2019 10:12AM PDT

You can put the 8TB hdd in this enclosure and it shows fine in disk management?

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Apr 7, 2019 2:58PM PDT

no, i have another 8TB ext hdd. as well as this 3TB enclosure

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Sounds like the enclosure is picky about drives.
Apr 7, 2019 10:34AM PDT

Time for another enclosure to use on the drive that doesn't work in the old enclosure.

However there is one thing. You seem to be putting the drive in a PC and an enclosure. That can lead to troubles on some enclousures. I've seen a few where where the format is not compatible from enclosure to SATA on the PC. I don't care for that trouble and will not work to fix that. That is, we replace the enclosure.

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further trouble shootin
Apr 7, 2019 3:06PM PDT

It seem that the enclosure adapter is wonky. I connected to another desktop. same result. The 1TB drive that worked just a week ago, now is not usable with the adapter. A new enclosure is relative cheap. ill go that route. Thanks for the comments

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Nice to read
Apr 7, 2019 3:12PM PDT

That you are going from trouble shootin to just shootin the old enclosure.

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