Sarath, Unfortunately, the trace file is not all that useful. The real key to the command is that it verifies that the recovery process can read the log. Since you are using raw file systems, use the dd command. You don't have to name the archive log the same name, the manual recovery process will allow you to substitute a differently named file. If your Do a manual recovery until cancel and when the corrupted archive log is requested, substitute the name (including full path) of the known good replacement. If the production database is up and running, schedule a cold backup as soon as possible. Check the async parameters and correct them if they are not set properly. Remember, your production database is now unrecoverable until your next backup.
Daniel W. Fink Sr. Oracle DBA MICROMEDEX 303.486.6456 -----Original Message----- Sent: Thursday, June 20, 2002 8:08 PM To: Multiple recipients of list ORACLE-L Thanks dan, alter system dump logfile 'xxx' came out with out errors. it created trc file. how to decipher this trace file. i copied the transfered the file to dr could not apply the log. 2. we use raw file system for the redologs. 3. how to make a copy of the redolog which is not overwritten and how to apply it should i have to give the same name as the corrupted redolog and apply ? please advise. Sarath. --- "Fink, Dan" <[EMAIL PROTECTED]> wrote: > Try sending the archive log again, it may have been > corrupted in transit. > If the redo log that generated this archive log has > not been overwritten, > make a copy of it and try to apply it to the > standby. *Do this quickly if it > is not too late... > > Aside from that, you have a bigger problem. > Obviously, your standby database > is now stopped at a point in time and cannot be > moved forward. However, if > the archive log is corrupted at the primary site, > your database is now > unrecoverable at that time the archive log needs to > be applied. If you had a > failure and needed to apply that log, you are in the > same situation. > > There is a known bug (see note 50581.1 on metalink) > that causes archive log > corruption. If you have different settings for > async_read and async_write, > you can corrupt the archive logs. The metalink note > indicates that it is > corrected in 7.3.4.1, but I recall seeing it in > later versions on the > solaris platform. > > The command to verify the ability to read the > archive log is ALTER SYSTEM > DUMP LOGFILE 'filename'. It uses the same algorithm > as the recovery process. > > Daniel W. Fink > Sr. Oracle DBA > MICROMEDEX > 303.486.6456 > > > -----Original Message----- > Sent: Thursday, June 20, 2002 10:23 AM > To: Multiple recipients of list ORACLE-L > > > Dear list, > > we have a stand by database in prod where we apply > archive logs. one of the redologs got a corruption > and > generated a trace file. is there a way to fix this > redolog or find where the problem is > > thanks in advance. > Sarath. > ----------------------- > Oracle7 Server Release 7.3.4.0.1 - Production > With the distributed and parallel query options > PL/SQL Release 2.3.4.0.0 - Production > ORACLE_HOME = /opt/oracle/product/7.3.4 > System name: SunOS > Node name: oraprod > Release: 5.6 > Version: Generic_105181-31 > Machine: sun4d > Instance name: vision > Redo thread mounted by this instance: 1 > Oracle process number: 9 > Unix process pid: 10366, image: oracleRPT > > *** SESSION ID:(10.4355) 2002.06.19.02.54.54.000 > *** > Corrupt block dba: 0x28400001 file=74. blocknum=1. > found during data file header > > read > on disk type:108. ver:108. dba: 0x6c6c6c6c > inc:0x6c6c6c6c seq:0x6c6c6c6c incseq: > > 0x00010002 > on disk checksum=0x6c6c, calculated checksum=0xffcd > on disk type=108., expected type=11. > "oa" [Read only] 24 lines, 817 charactersm=1. found > same corupted data > ------------------------------ > > > > __________________________________________________ > Do You Yahoo!? > Yahoo! - Official partner of 2002 FIFA World Cup > http://fifaworldcup.yahoo.com > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: sarath kumar > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: > (858) 538-5051 > San Diego, California -- Public Internet > access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an > E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of > 'ListGuru') and in > the message BODY, include a line containing: UNSUB > ORACLE-L > (or the name of mailing list you want to be removed > from). You may > also send the HELP command for other information > (like subscribing). > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: Fink, Dan > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: > (858) 538-5051 > San Diego, California -- Public Internet > access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an > E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of > 'ListGuru') and in > the message BODY, include a line containing: UNSUB > ORACLE-L > (or the name of mailing list you want to be removed > from). You may > also send the HELP command for other information > (like subscribing). __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: sarath kumar INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Fink, Dan INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).