I was in archivelog mode and because of storage lack on server which Oracle is running and logs are creating suddenly system crashed and I restart the server machine then I decided to change the path of redo logs from EM->Configuration->recovery to another place on server but it errors.Finally I just force the Oracle to nonarchivelog mode.Any other thing I could?
-thanks in advance
If there is a lack of storage on your server then changing destination paths won't solve the problem - you'll still have no more storage space.
It looks like you need to get more disk space or stay in nonarchivelog mode (which is not necessarily a bad thing - it depends on what the Db is used for & how critical the data is).
90% of users' problems can be resolved by punching them - the other 10% by switching off their PCs.