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984 posts

Ultimate Geek
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Topic # 108155 24-Aug-2012 22:22
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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

8698 posts

Uber Geek
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  Reply # 676631 24-Aug-2012 23:15
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Does gparted provide any additional?



984 posts

Ultimate Geek
+1 received by user: 25


  Reply # 676637 24-Aug-2012 23:44
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I ran Gparted with the drive in the USB enclosure and same thing. Could only see one 750Gb drive and couldn't change it

 
 
 
 


153 posts

Master Geek
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  Reply # 676656 25-Aug-2012 01:08
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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.



984 posts

Ultimate Geek
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  Reply # 676667 25-Aug-2012 02:55
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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 :)

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  Reply # 676755 25-Aug-2012 11:24
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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

360 posts

Ultimate Geek


  Reply # 679432 30-Aug-2012 19:33
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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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