I am running teaming 2.0 test drive. Today I deleted the ibdata1 in the var/lib/mysql carelessly(system don't prompt to confirm delete after I press the del key carelessly). then the teaming system can't work. I can't receive the file from the trash because the trash has problem too. (it reply "Failed to execute child process "/usr/lib/gvfs/gvfsd-trash" (No such file or directory))

Can anyone tell me:
1. the function of this files, what data is stored ?
2. how can I recover the file ?
3. How can I fix the trash problem ?