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922 posts

Ultimate Geek
+1 received by user: 14


Topic # 108155 24-Aug-2012 22:22 Send private message

Hi guys,

Chucked a 3TB HDD in my external enclosure and it is showing up as ~750GB... I did a bit of reading and found out why this might be but I am wondering why the 2.2TB partition isnt showing up as well.

Seems to already be GPT format but from what I've read there should be another partition as well. I had this same issue when I put in an internal 3TB (showed up as 800+ 2200) but when I covered it to gpt it went to a single 3TB.

From what I've read it's the USB controller that is probably to blame. My question is if I do put the disk internal and format it to a single 3TB partition and then put it back in the USB enclosure, will that work?

Anything I can do at all apart from buying a new USB enclosure that supports 3TB drives?

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gzt

4605 posts

Uber Geek
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  Reply # 676631 24-Aug-2012 23:15 Send private message

Does gparted provide any additional?



922 posts

Ultimate Geek
+1 received by user: 14


  Reply # 676637 24-Aug-2012 23:44 Send private message

I ran Gparted with the drive in the USB enclosure and same thing. Could only see one 750Gb drive and couldn't change it

77 posts

Master Geek
+1 received by user: 5


  Reply # 676656 25-Aug-2012 01:08 Send private message

The sata to usb chip won't be able to recognise the full 3TB. I reckon you will need a new enclosure that supports 3TB drives. 2.2TB seems to be the magic number.



922 posts

Ultimate Geek
+1 received by user: 14


  Reply # 676667 25-Aug-2012 02:55 Send private message

Yeah that's what I read.

however I plugged the HDD directly onto the mobo via a SATA cable and removed the partitions and reformatted it and it now appears as 2.78TB, even in my external USB enclosure.

Glad I don't need to upgrade anything :)

11131 posts

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  Reply # 676755 25-Aug-2012 11:24 Send private message

Asmodeus: Yeah that's what I read.

however I plugged the HDD directly onto the mobo via a SATA cable and removed the partitions and reformatted it and it now appears as 2.78TB, even in my external USB enclosure.

Glad I don't need to upgrade anything :)


Don't be too happy just yet, it can see a partition table that shows a 3TB partition, it doesn't mean it can access the whole disk and IME a 3TB on an obsolete bridge chip just leads to massive data corruption.




Richard rich.ms

357 posts

Ultimate Geek


  Reply # 679432 30-Aug-2012 19:33 Send private message

if you had vista or win7 you could of just resized it with the inbuilt disk manager. or if you had xp you could of tryed easeus




Hu? did i do that?
16Mb (EDO RAM), K6-II processor, 2Mb of onboard graphics. 32k dial up modem. 12 speed CD ROM. 5¼-inch floppy drive. 500Mb HDD.

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