Specific types will infect plugged in USB, and in the end not only will they go after the hard drive it connects to anything held in a USB, and, if it were for needed backups up?, your up the creek.
And as well as photos/music ect.
If backups are a must many prefer to do an Image backup of the machines and update when needed and unplugged.
hmm maybe thats why I been having issues latly with corropted files and data on my external's. Is it possible that bandwidth could overload to on the drives? I have some where around like 10 hard drives so quite alot. Ok well thanks for the advice, i guess I may unplug most of them and keep the only ones I need for stuff like streaming and plex media.
Well i guess we are done, thanks for all the assistance.