Database Software

Hi,

My database is a RAC One Node database and I need to enable it's archive log mode. In order to enable archive log mode, I thought I have to do the following steps on my current instance:

shutdown immediate;
startup mount;
alter database archivelog;
alter database open;

However, after I executed the "shutdown immediate" command, the RAC One Node automatically failed over to another node!

Please give me some clue on how I can enable the archive log mode.

Much appreciated.

Roselyn