>I am running the backup script as root to aviod any access issues
NEVER use root to do anything involving Oracle!
Always use OS "oracle" account.
Code:
27044, 00000, "unable to write the header block of file"
// *Cause: write system call failed, additional information indicates which
// function encountered the error
// *Action: check errno
OS error. Oracle is the victim; not the culprit.