Shulou(Shulou.com)05/31 Report--

This article mainly introduces "how to solve the problem of bad block in datafile1 after the power outage of rac". In daily operation, I believe that many people have doubts about how to solve the problem of bad block in datafile1 after the power is off in datafile1. The editor has consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubt of "how to solve the problem of bad block in datafile1 after power outage in rac". Next, please follow the editor to study!

There are two RAC in the intranet, which cannot be started after a power outage.

Process: (it lasts for several months. I didn't succeed after watching it for two days, but then I didn't care.)

1. Alert reported an error

Tue Jul 31 14:16:25 2018

Hex dump of (file 1, block 1824271) in trace file / oracle/ora11g/diag/rdbms/rac/rac4/trace/rac4_p001_8985.trc

Tue Jul 31 14:16:25 2018

Hex dump of (file 1, block 1824272) in trace file / oracle/ora11g/diag/rdbms/rac/rac4/trace/rac4_p006_8995.trc

Reading datafile'+ DATA/rac/datafile/system.256.856700057' for corruption at rdba: 0x005bd610 (file 1, block 1824272)

Reading datafile'+ DATA/rac/datafile/system.256.856700057' for corruption at rdba: 0x005bd60f (file 1, block 1824271)

Reread (file 1, block 1824271) found same corrupt data (logically corrupt)

RECOVERY OF THREAD 4 STUCK AT BLOCK 1824271 OF FILE 1

Reread (file 1, block 1824272) found same corrupt data (logically corrupt)

RECOVERY OF THREAD 4 STUCK AT BLOCK 1824272 OF FILE 1

Performed a recover database using backup controlfile until cancel

Prompt ora-1547,ora-1194

2. Set the hidden parameter _ allow_resetlogs_corruption=true, _ corrupted_rollback_segments= "xx" undo_management=manual

Alter database open; prompt error:

Ora-600 [kclchkblk_4]

Ora-704: bootstrap process failure

3. Promote scn oradebug poke or alter sesession set events' 10015 trace name adjust_scn level x'(may be valid before 11.2.0.4)

4. The success of alter database open; does not require resetlogs, which may be related to this processing method.

5. Alert logs, a large number of ora-600 [ktbsdp1], ora-01555, ora-600 [4097] all seem to be related to undo corruption

6. Delete the current undo tablespace reconstruction

7. Unhide parameters and restart

At this point, the study on "how to solve the problem of bad blocks in datafile1 after a power outage in rac" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.