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Windows 7: 2 x HDD Show as Incorrect Capacity

23 Jan 2015   #1

Windows 7
2 x HDD Show as Incorrect Capacity

Hi - I have two Seagate external drives of 3 and 4 TB capacity each. They are about 12 months old and they operate fine in their own enclosures. I have multiple external drives and decided recently to purchase a 4-bay NON-RAID enclosure. After reading some reviews, I got this Hotway model (called by another name in the US I believe) from PC Case Gear in Australia:

Hotway 4-Bay non-RAID USB3.0/eSATA Enclosure [HF2-SU3S2] - $179.00 : PC Case Gear

It is USB 3 and has a max capacity of 4 x 4TB 3.5 inch drives.

After removing the drives from their enclosures, I slotted them into the Hotway and fired it up. To my astonishment, the 3 TB drive shows only as 349 GB and the 4 TB shows as 465 GB. I rewired them through their original cases and they showed as 3 and 4 TB once more.

I had quite a bit of data on each drive (well over 1.5 TB) and when I plugged the in to the Hotway I received a message that both drives needed formatting. So I copied all the data to another drive before submitting the drives to the format routine but this did not change their size.

Any idea what could be happening here?

My System SpecsSystem Spec
26 Jan 2015   #2

Windows 7

Okay so no takers but I am pleased to report a solution that someone may benefit from. This Hotway device is branded Mediasonic in other parts of the world so I contacted their support service. After denying that the product was the same, the did mention this:

For drives removed from Seagate External, you must reformat the drive
looks like you did it. but you need to use GPT partition with 3TB and over for win 7 64bit.

So I did that and all is well.
My System SpecsSystem Spec

 2 x HDD Show as Incorrect Capacity

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