RE: Creating a missing datafile
Thanks Deepak, Slight problem though. The database has been opened with RESETLOGS so previous archive logs are useless. v$recover_file reports this file# is offline/missing file. I think my only other option is to drop then rebuild/recreate the tablespace and import the objects in it from an export dump. Ross > -Original Message- > From: Deepak Thapliyal [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, 6 February 2002 11:45 > To: Multiple recipients of list ORACLE-L > Subject: Re: Creating a missing datafile > > > Hi Ross, > > have u by any chance restored a backupcontrol file > that was backedup before you added this datafile. > > Is this the case? If yes than what oracle is doing is > putting a placeholder entry for this file and calling > it missing file.. here is what u can do (assumes that > you have all the archivelogs available since this file > was created .. > > restore the db from backup and mount it .. > > SQL> select name from v$datafile where file#=41; > > SQL> ALTER DATABASE > CREATE DATAFILE > 'use the out of above sql' as >'/u2/db/archive2_2.dbf'; > > SQL> recover database using backup controlfile ; > > Use Auto till it asks for non-existent arch (supply ur > online log) > > Media recovery complete after online log is applied > > technically u should be able to open the db in > noresetlogs mode at this time .. however i have seen > that it does not .. so here is the workaround .. > > SQL> alter database backup controlfile to trace; > SQL> create controlf file ..< from ur trace> > SQL> recover database; -- takes one sec to complete > SQL> Alter database open; > > hth > Deepak > --- Ross Collado <[EMAIL PROTECTED]> wrote: > > > > Env. > > HP-UX 10.2 > > Oracle 7.1.6 > > Archivelog mode > > > > > > Found this in the alert.log > > > > Dictionary check beginning > > File #41 found in data dictionary but not in > > controlfile. > > Creating OFFLINE file 'MISSING0041' in the > > controlfile. > > Dictionary check complete > > > > I did a dump of the controlfile to trace and > > checked. It had MISSING0041 in > > it. However, I did a find on this file and couldn't > > find it. Does this > > mean MISSING0041 was just updated in the controlfile > > and was not actually > > created as a physical file? > > I know the complete path/filename of what this > > MISSING0041 datafile should > > be (it should be /u2/db/archive2_2.dbf). This is > > actually the 3rd datafile > > of ARCHIVE tablespace. If this file existed then it > > would have been an easy > > rename of datafile via "ALTER TABLESPACE ... RENAME > > DATAFILE...". But there > > is no physical file to rename. > > I don't think I can do a create a file via "ALTER > > DATABASE CREATE > > DATAFILE..." in this case because the controlfile > > won't have the correct > > path/filename of this datafile (it's got > > 'MISSING0041' SIZE 500M). > > How do I go about recreating a physical file having > > the correct filename and > > size? > > > > TIA, > > > > Ross > > > > -- > > Please see the official ORACLE-L FAQ: > > http://www.orafaq.com > > -- > > Author: Ross Collado > > 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!? > Send FREE Valentine eCards with Yahoo! Greetings! > http://greetings.yahoo.com > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Deepak Thapliyal > INET: [EMAIL PROTECTED] > > Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California-- Public Internet access / Mailing Lists > >
Re: Creating a missing datafile
Hi Ross, have u by any chance restored a backupcontrol file that was backedup before you added this datafile. Is this the case? If yes than what oracle is doing is putting a placeholder entry for this file and calling it missing file.. here is what u can do (assumes that you have all the archivelogs available since this file was created .. restore the db from backup and mount it .. SQL> select name from v$datafile where file#=41; SQL> ALTER DATABASE CREATE DATAFILE 'use the out of above sql' as '/u2/db/archive2_2.dbf'; SQL> recover database using backup controlfile ; Use Auto till it asks for non-existent arch (supply ur online log) Media recovery complete after online log is applied technically u should be able to open the db in noresetlogs mode at this time .. however i have seen that it does not .. so here is the workaround .. SQL> alter database backup controlfile to trace; SQL> create controlf file ..< from ur trace> SQL> recover database; -- takes one sec to complete SQL> Alter database open; hth Deepak --- Ross Collado <[EMAIL PROTECTED]> wrote: > > Env. > HP-UX 10.2 > Oracle 7.1.6 > Archivelog mode > > > Found this in the alert.log > > Dictionary check beginning > File #41 found in data dictionary but not in > controlfile. > Creating OFFLINE file 'MISSING0041' in the > controlfile. > Dictionary check complete > > I did a dump of the controlfile to trace and > checked. It had MISSING0041 in > it. However, I did a find on this file and couldn't > find it. Does this > mean MISSING0041 was just updated in the controlfile > and was not actually > created as a physical file? > I know the complete path/filename of what this > MISSING0041 datafile should > be (it should be /u2/db/archive2_2.dbf). This is > actually the 3rd datafile > of ARCHIVE tablespace. If this file existed then it > would have been an easy > rename of datafile via "ALTER TABLESPACE ... RENAME > DATAFILE...". But there > is no physical file to rename. > I don't think I can do a create a file via "ALTER > DATABASE CREATE > DATAFILE..." in this case because the controlfile > won't have the correct > path/filename of this datafile (it's got > 'MISSING0041' SIZE 500M). > How do I go about recreating a physical file having > the correct filename and > size? > > TIA, > > Ross > > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: Ross Collado > 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!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Deepak Thapliyal 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).
Re: Creating a missing datafile
Ross Collado wrote: > > Env. > HP-UX 10.2 > Oracle 7.1.6 > Archivelog mode > > Found this in the alert.log > > Dictionary check beginning > File #41 found in data dictionary but not in controlfile. > Creating OFFLINE file 'MISSING0041' in the controlfile. > Dictionary check complete > > I did a dump of the controlfile to trace and checked. It had MISSING0041 in > it. However, I did a find on this file and couldn't find it. Does this > mean MISSING0041 was just updated in the controlfile and was not actually > created as a physical file? > I know the complete path/filename of what this MISSING0041 datafile should > be (it should be /u2/db/archive2_2.dbf). This is actually the 3rd datafile > of ARCHIVE tablespace. If this file existed then it would have been an easy > rename of datafile via "ALTER TABLESPACE ... RENAME DATAFILE...". But there > is no physical file to rename. > I don't think I can do a create a file via "ALTER DATABASE CREATE > DATAFILE..." in this case because the controlfile won't have the correct > path/filename of this datafile (it's got 'MISSING0041' SIZE 500M). > How do I go about recreating a physical file having the correct filename and > size? > > TIA, > > Ross > Ross, Do not be mistaken : RENAME DATAFILE is nothing more than an update inside the control file. It does nothing the operating system knows of. You can rename MISSING0041 to /u2/db/archive2_2.dbf. Concerning the size, I guess that ALTER DATABASE ... RESIZE should fix it, although this is little bit more dubious, since this command ACTUALLY extends files. Perhaps you could resize it to a little more than the real current size. Another solution would be to recreate control files, by doing an ALTER DATABASE BACKUP CONTROLFILE TO TRACE and editing the resulting trace file to reinsert the proper file name. If your database is in a relatively clean state (i.e. nothing in redo log files) it should be safe. Backup your database before attempting anything ... (control files included) -- Regards, Stephane Faroult Oriole Ltd -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroult 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).
