Glyph Technologies Knowledge Base :: My GT 062E does not show up correctly in Windows while connected via eSATA (3TB or 4TB only).

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My GT 062E does not show up correctly in Windows while connected via eSATA (3TB or 4TB only).

A 3TB and 4TB GT 062E drive in RAID 0 or Spanning mode may appear to be smaller than it's actual size when plugged in to an eSATA port on Windows Vista and Windows 7. The GT 062E may appear as the expected size if the drive is previously formatted using a different eSATA controller, USB, or FireWire.

Microsoft has posted their own knowledgebase article about the problem.

This can happen if the controller driver underreports the total number of sectors on the disk. In this scenario some read or write attempts may fail and data loss is possible. Customers experiencing this problem should contact their SATA controller vendor for updated drivers.