Hi Gurus,
While doing some house keeping, accidentally /oracle/SID/saparch/cntrl/cntrlSID.dbf got moved / deleted.
We were not aware of this until after 3 days we were informed by the backoffice team regarding the failed backups.
Upon investigation we found out that the said control file was missing and thus the backups were failing
So we copied the control file from ORIGLOG and kept it in SAPARCH !!
After copying this file, there was an usual system checkpoint and then the DB was shutdown
Now the alert file has no details of the instance shutdown but one of the trace file mentions that after the checkpoint, Oracle found out that the SAPARCH control file's version was different than ORIGLOG's control and thus it terminated the instance
Alert log mentions : Apr 30 11:00:49 2014 opiodr aborting process unknown ospid (15521) as a result of ORA-1092
TRC file mentions :
Error: kccchb_6
Control file sequence number mismatch!
fhgcsq: 890352 high_i: 0
SGA csq: 890361 lseqno: 890352 low_i: 0 hseqno: 890352
*** 2014-04-30 11:00:49.420
USER (ospid: 22482): terminating the instance
My question over here is, does Oracle shutdown the DB if it notices mismatched control file in checkpoint
OR something else has caused the shutdown
R..../-