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External drives on TBD unmounting by themselves?

I have 2 G-Tech drives daisy chained into each other then to the FW800 port on my thunderbolt display which is connected to my Macbook Air. Sometimes when transferring large files they suddenly unmount and I get the warning that I should properly unmount the drives. It is not a connection issue as I have tried various Firewire cables. Nor is it a drive issue as I have seen it happen on both drives whether or not they are connected as a single drive or daisy chained and they work fine otherwise. This has probably happened about 5 times already in the last couple of months and it has already corrupted some jpegs making them show artifacts or showing as incomplete pictures when I try to view them. Luckly I always have a backup copy of all of it so I havent lost anything. Anyone know why this is happening? This is a serious issue and I am trying to fix it ASAP.


I am not sure if it is the thunderbolt display but if it is, how would I even demonstrate to the people at the store so they can see the problem that I am having since it seems to happen at random intervals.

Posted on Feb 4, 2013 9:08 PM

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3 replies

Feb 5, 2013 11:31 PM in response to micrors4racer

I had two 2TB GDrives coonected to my ATD and kept haveing the same problem that you're having. Turns out one of the controllers in one of the drives was defective. Once I got it replaced by G-Tech I've had no more problems. Since you're problem occurs whenever one G-Drive is connected, it may be that both controllers are at fault - I don't know. It was only one drive wreaking havoc with me and wa seasily remedied.


Clinton

External drives on TBD unmounting by themselves?

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