How Do I Know if Drive Is Damaged?

Hi, all. I accidentally unplugged a firewire drive from my MacBook Pro without unmounting it first. I got the usual "you've incorrectly removed a device ... some data may be lost or damaged" message...
I've plugged the drive back in, and it seems to be doing fine. The thing is, how do I know if I lost any data or damaged the disk in a way that will cause problems down the road? Does anyone know exactly what incorrectly unplugging the Firwire drive actually does to the drive? Thanks...

As far as I know, though it may cause some physical harm if done repeatedly over a long period of time, I think the biggest problem associated with that is just the loss of recent data, and maybe as a worse consequence data that has been on there for a while.
I wouldn't sweat it all, I have a friend who does that all the time, and doesn't care, and he doesn't seem to have any problems doing it. Still, I recommend that you maintain the habit of unmounting/ejecting before pulling the cord out.....

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