Recover database when losing all the controlfile

Question

I read theBackup and Recovery Advanced User's Guide of 10g R2.
I can't quit understand a scene in Restore Control File from Backup After Loss of All Current Control Files
Table 18–1 Scenarios When Control Files Are Lost
When the status of onlin log is Unavailable and the status of datafile is current, the restore procedure is as following:
If the online logs contain redo necessary for recovery, then
re-create the control file. Because the online redo logs are
inaccessible, open RESETLOGS (when the online logs are
accessible it is not necessary to OPEN RESETLOGS after
recovery with a created control file).
My question is even you create the controlfile based on the current datafiles, the lost online log is still needed for the recovery (consdering the DB is shutdown abort)
So I can't get the DB consistent

Answer 1

Hello;
OK, I reviewed the section you referred to :
http://docs.oracle.com/cd/B19306_01/backup.102/b14191/osrecov.htm#i1011093
I understand your question but I have doubt you could shutdown a database abort and have a Status of Datafiles of Current. As you state yourself "lost online log is still needed for the recovery" so I'm not sure I would a Shutdown Abort
Loss of Redo Logs are bad news. You want to avoid this at all cost. You not only want to multiplex the redo groups, but have each member on separate physical devices using separate controllers. If you setup correctly the only time you should ever have to preform an incomplete recovery is the lost of ALL members of the CURRENT group. Otherwise you should be able to recreate a member, clear a logfile or do a checkpoint and clear the logfile.
V$LOG and V$LOGFILE are your friends.
If you ever lose all members of the current redo log group contact Oracle Support ASAP.
Best Regards
mseberg