Does Repair Disk erase anything?

[MacLover2011]

If I run repair disk delete anything when running? I just purchased a new Seagate external 1 tb hard drive. I ran Time Machine which took about 5 hours. After that I dragged about 500 gigs of old files to it from another hard drive. The sea gate made a BEEP during that. Should I be concerned? I want to run the repair disk but don't want to lose anything. I'll call seagate about this too. I noticed it doesn't allow me to trash any folders from the seagate to the trash. Any reason?
Thanks

 

[gsahli]

Disk Utility Disk Repair doesn't delete any files - but any disk repair "could" delete a file if the file was the problem or its directory entries were the problem.

Ask Seagate about the beep.

Did all this start because your startup drive is full?

 

[MacLover2011]

Thanks. I'm retuning the drive. I think it was full.