An easy omission in Oracle8i upgrade to 10g x64

During the National Day, I upgraded my Oracle 8i database to 10g 64. After the upgrade, I found that the datafile of sysaux tablespace was not. it turns out that the datafile list I used when I upgraded to the control file is the one I used before the upgrade, the datafile of the new tablespace sysaux generated during the upgrade is not added to the List. I did not add this file in my previous tests, but the system has not reported any errors, so it has not been detected by me.
Pay attention to this if you have the opportunity to upgrade later. so far, no solution has been found. A new datafile is added. It is estimated that the tablespace can be used normally. However, the unknown datafile does not know how to solve the problem, it takes a long time to transmit data to other databases. However, it takes a long time to have more than 400 GB of data.