Archived log failed

what could cause the archived failed ??? I have plenty space for the archived log on my server.

What do I need to do if it's faling ???

Please advise, it's urgent

Any ORA errors?

Give Archive log list; command at server manager prompt and post the result.

Thanks,

It does not generate any errors at all, it just said that failed to archive without indicating any errors so I can track down

If you have plenty of space for arching check if something else is accessing the archive logs at the same time when archive process is trying to archive them. This happened to us too, when server backup routines were trying to remove archive log to tape and the archive process was writing to a file.