I'm currently in the process of moving from France to Canada.
I have plenty of computer equipment that I just put in boxes and that will be sent by naval transport. One thing I'm scared off though, is that people handling my boxes and/or the container aren't really delicate when it comes to moving stuff that contains hard-drives (I'm mainly concerned about my Network Access Storage device which contains tera-bytes of data). Obviously hard-drives are really sensitive to movement and could break easily if wrongly handled.
Putting those in checked-luggage doesn't seem like a better idea (some would even say it's actually worse) so the only option I can think of is taking at least one of the disks with me in cabin-luggage.
So here comes the question: is one allowed to carry such a disk in cabin luggage ? I know people travel all the time with external hard drives, but in this case, I'm afraid a custom police officer unaware of what this device is, might be afraid of the looks of an unenclosed hard drive such as:

I can easily imagine how one could use a sharp hard drive as a dangerous projectile, but I could say the same for many other items so my concern is more about "What is this metallic/electronic device that you can't turn on ? Is it a BOMB ?!"
I obviously made online backups of anything really valuable, but some of the data files are just too big to be uploaded in reasonable time now.
Should I prepare for the worst ?
Follow-up
I actually used an old case for hard-drives of that size and could go through both french & british customs/security checks without any trouble. They were more concerned about my shoes (you know, terrorist shoes, with small rings of metal to hold the laces) than about my hard drive.
naval transportis only used by the marines. Perhaps you mean "cargo" :) – Burhan Khalid Aug 29 '14 at 06:23