Oracle启动失败，如何连接RMAN？

Question

Currently, my Oracle cannot be started up successfully. I executed startup mount , it is OK. Then I executed startup open . It said

Unable to Creating archive log file to '+DGARCH'
ARCH: Error 19504 Creating archive log file '+DGARCH'

I got some suggestions from internet. I should remove archived redo logs that are no longer needed. Then I would like to do it by RMAN. I executed RMAN>connect target / as sysdba . But it said

RMAN-00554：initialization of internal recovery manager package failed
RMAN-04005: error from target database
ORA-01017: invalid username/password; logon denied

I also tried RMAN>connect target sys/change_on_install . It didn`t work.

And I checked sqlnet.ora .

NAMES.DIRECTORY_PATH=(TNSNAMES, EZCONNECT)
ADR_BASE = /grid/grid_base

I can use sys/change_on_install login sqlplus successfully. What is default password for sys on RMAN? How can I login RMAN successfully?

Thans in advance!

Answer 1

hope its been resolved by you as it was asked 2 months before. If you not try the below and update it.

Can you try to connect rman as below,

rman target /

I believe you are trying with wrong sys account credentials. It worked in sqlplus as you might have tried with "sysdba" role as sqlplus username/password as sysdba.

you can delete all the archivelogs as below,

RMAN>delete archivelog all

Thanks,