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I want to purchase a harddrive dock from Newegg. Many of the docks say it handles a maximum of 2 TB. Others do not list their limit. Do all docks have a limit of 2 TB because of some fundamental limit of operating systems? I seem to recall something about Windows XP not being able to handle large harddrives. Could it be related to this issue? I'm using Windows Vista though.

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2 Answers

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In all likelihood, it's a limitation of the SATA controller that the dock contains inside itself. It is most certainly not a limitation of Windows. If you can find out what controller the dock contains, you should be able to look up its drive limits.

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What SATA controllers allow greater than 2 TB? I'm looking to purchase some 3 TB drives soon and don't want this dock to fail on me. –  JoJo May 1 '11 at 3:32
    
@JoJo Personally, I use the NewerTech Voyager. This uses the Oxford 944SE chipset which supports as large of a drive as you can dock in it. (Not that I'm providing a shopping recommendation, as it's clearly against the rules in the FAQ). –  squircle May 1 '11 at 3:36
    
Hmmm.. $50. The ones with 2 TB limit on Newegg are only $21... Choices, choices. I just know the more greedy I get, the more harddrive space I'll need. VHS -> DVD -> Bluray -> what's next? Videos are getting bigger and bigger each decade. –  JoJo May 1 '11 at 3:42
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@JoJo Grab an HDD rack and build your own NAS! I took an old beige box, put FreeBSD on it and I've got the power of ZFS at my disposal. Hot-swappable, expandable, contractable, manipulatable storage at my fingertips. No running out of space in my future! –  squircle May 1 '11 at 3:45
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Most older docks only support 2TB disks.

The ones that go beyond this limit will report a 'max supported disk size' of 3TB or higher in their specs.

Example: this one is a 'version 2' and supports 3TB disks, while this ('v1') does not.

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