Oracle 19C 报ORA-704 ORA-01555故障处理

Posted on 2023 年 07 月 30 日 by 惜分飞

异常断电导致数据库无法启动,尝试对数据文件进行recover操作,报ORA-00283 ORA-00742 ORA-00312错误,由于redo写丢失无法正常应用

D:\check_db>sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on 星期日 7月 30 07:49:19 2023
Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.


连接到:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.3.0.0.0

SQL> recover datafile 1;
ORA-00283: 恢复会话因错误而取消
ORA-00742: 日志读取在线程 1 序列 9274 块 18057 中检测到写入丢失情况
ORA-00312: 联机日志 1 线程 1: 'D:\APP\ADMINISTRATOR\ORADATA\XFF\REDO01.LOG'

屏蔽数据一致性,尝试强制打开库,报ORA-00604,ORA-00704,ORA-01555错误

SQL> alter database open resetlogs;
alter database open resetlogs
*
第 1 行出现错误:
ORA-00603: ORACLE server session terminated by fatal error
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-01555: snapshot too old: rollback segment number 9 with name
"_SYSSMU9_4165470211$" too small
进程 ID: 4036
会话 ID: 2277 序列号: 40707

alert日志对应错误

2023-07-30T06:54:43.457383+08:00
.... (PID:5836): Clearing online redo logfile 1 complete
.... (PID:5836): Clearing online redo logfile 2 complete
.... (PID:5836): Clearing online redo logfile 3 complete
Resetting resetlogs activation ID 3572089731 (0xd4e9c383)
Online log D:\APP\ADMINISTRATOR\ORADATA\XFF\REDO01.LOG: Thread 1 Group 1 was previously cleared
Online log D:\APP\ADMINISTRATOR\ORADATA\XFF\REDO02.LOG: Thread 1 Group 2 was previously cleared
Online log D:\APP\ADMINISTRATOR\ORADATA\XFF\REDO03.LOG: Thread 1 Group 3 was previously cleared
2023-07-30T06:54:43.863676+08:00
Setting recovery target incarnation to 2
2023-07-30T06:54:44.816771+08:00
Ping without log force is disabled:
  instance mounted in exclusive mode.
Endian type of dictionary set to little
2023-07-30T06:54:44.957395+08:00
Assigning activation ID 3664275149 (0xda6866cd)
2023-07-30T06:54:44.957395+08:00
TT00 (PID:4640): Gap Manager starting
2023-07-30T06:54:45.004305+08:00
Redo log for group 1, sequence 1 is not located on DAX storage
2023-07-30T06:54:46.176153+08:00
Thread 1 opened at log sequence 1
  Current log# 1 seq# 1 mem# 0: D:\APP\ADMINISTRATOR\ORADATA\XFF\REDO01.LOG
Successful open of redo thread 1
2023-07-30T06:54:46.191771+08:00
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
stopping change tracking
2023-07-30T06:54:46.223036+08:00
TT03 (PID:1816): Sleep 5 seconds and then try to clear SRLs in 2 time(s)
2023-07-30T06:54:46.332398+08:00
ORA-01555 caused by SQL statement below (SQL ID: 4krwuz0ctqxdt, SCN: 
0x0000000017b852a7
):
2023-07-30T06:54:46.332398+08:00
select ctime, mtime, stime from obj$ where obj# = :1
2023-07-30T06:54:46.332398+08:00
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ora_5836.trc:
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 9 (名称为 "_SYSSMU9_4165470211$") 过小
2023-07-30T06:54:46.332398+08:00
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ora_5836.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 9 (名称为 "_SYSSMU9_4165470211$") 过小
2023-07-30T06:54:46.348028+08:00
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ora_5836.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 9 (名称为 "_SYSSMU9_4165470211$") 过小
Error 704 happened during db open, shutting down database
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ora_5836.trc  (incident=474502):
ORA-00603: ORACLE 服务器会话因致命错误而终止
ORA-01092: ORACLE 实例终止。强制断开连接
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-01555: 快照过旧: 回退段号 9 (名称为 "_SYSSMU9_4165470211$") 过小
Incident details in: D:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\incident\incdir_474502\xff_ora_5836_i474502.trc
2023-07-30T06:54:47.785549+08:00
opiodr aborting process unknown ospid (5836) as a result of ORA-603
2023-07-30T06:54:47.816792+08:00
ORA-603 : opitsk aborting process
License high water mark = 6
USER (ospid: (prelim)): terminating the instance due to ORA error

这类错误比较常见,参考以前类似恢复:
在数据库open过程中常遇到ORA-01555汇总
 数据库open过程遭遇ORA-1555对应sql语句补充
 Oracle Recovery Tools恢复—ORA-00704 ORA-01555故障
 使用_allow_resetlogs_corruption导致ORA-00704/ORA-01555故障
对于本次故障,通过Oracle Recovery Tools工具快速处理

open数据库成功

SQL> alter database open;

数据库已更改。

SQL>
SQL>
SQL> select status,count(1) from v$datafile group by status;

STATUS           COUNT(1)
-------------- ----------
SYSTEM                  1
ONLINE                 61

Exadata磁盘损坏导致磁盘组无法mount恢复（oracle一体机磁盘组异常恢复）

Posted on 2023 年 07 月 28 日 by 惜分飞

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：Exadata磁盘损坏导致磁盘组无法mount恢复（oracle一体机磁盘组异常恢复）

Oracle Exadata客户,在换盘过程中,cell节点又一块磁盘损坏,导致datac1磁盘组（该磁盘组是normal方式冗余)无法mount

Thu Jul 20 22:01:21 2023
SQL> alter diskgroup datac1 mount force 
NOTE: cache registered group DATAC1 number=1 incarn=0x0728ad12
NOTE: cache began mount (first) of group DATAC1 number=1 incarn=0x0728ad12
NOTE: Assigning number (1,35) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_11_dm01celadm03)
NOTE: Assigning number (1,31) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_07_dm01celadm03)
NOTE: Assigning number (1,24) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_00_dm01celadm03)
NOTE: Assigning number (1,25) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_01_dm01celadm03)
NOTE: Assigning number (1,27) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_03_dm01celadm03)
NOTE: Assigning number (1,33) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_09_dm01celadm03)
NOTE: Assigning number (1,30) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_06_dm01celadm03)
NOTE: Assigning number (1,28) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_04_dm01celadm03)
NOTE: Assigning number (1,26) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_02_dm01celadm03)
NOTE: Assigning number (1,1) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_08_dm01celadm03)
NOTE: Assigning number (1,34) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_10_dm01celadm03)
NOTE: Assigning number (1,29) to disk (o/192.168.10.9;192.168.10.10/DATAC1_CD_05_dm01celadm03)
NOTE: Assigning number (1,3) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_07_dm01celadm02)
NOTE: Assigning number (1,4) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_06_dm01celadm02)
NOTE: Assigning number (1,5) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_00_dm01celadm02)
NOTE: Assigning number (1,6) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_10_dm01celadm02)
NOTE: Assigning number (1,7) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_08_dm01celadm02)
NOTE: Assigning number (1,8) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_03_dm01celadm02)
NOTE: Assigning number (1,9) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_11_dm01celadm02)
NOTE: Assigning number (1,10) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_01_dm01celadm02)
NOTE: Assigning number (1,11) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_04_dm01celadm02)
NOTE: Assigning number (1,21) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_05_dm01celadm02)
NOTE: Assigning number (1,43) to disk (o/192.168.10.7;192.168.10.8/DATAC1_CD_02_dm01celadm02)
NOTE: Assigning number (1,36) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_07_dm01celadm01)
NOTE: Assigning number (1,37) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_09_dm01celadm01)
NOTE: Assigning number (1,38) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_11_dm01celadm01)
NOTE: Assigning number (1,0) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_08_dm01celadm01)
NOTE: Assigning number (1,40) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_00_dm01celadm01)
NOTE: Assigning number (1,41) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_03_dm01celadm01)
NOTE: Assigning number (1,42) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_06_dm01celadm01)
NOTE: Assigning number (1,44) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_05_dm01celadm01)
NOTE: Assigning number (1,45) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_01_dm01celadm01)
NOTE: Assigning number (1,46) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_02_dm01celadm01)
NOTE: Assigning number (1,47) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_10_dm01celadm01)
NOTE: Assigning number (1,2) to disk (o/192.168.10.5;192.168.10.6/DATAC1_CD_04_dm01celadm01)
Thu Jul 20 22:01:28 2023
NOTE: GMON heartbeating for grp 1
GMON querying group 1 at 450 for pid 30, osid 171838
NOTE: Assigning number (1,32) to disk ()
NOTE: Assigning number (1,39) to disk ()
GMON querying group 1 at 451 for pid 30, osid 171838
NOTE: cache closing disk 32 of grp 1: (not open) 
NOTE: process _user171838_+asm1 (171838) 
     initiating offline of disk 39.3915945266 () with mask 0x7e[0x7f] in group 1
NOTE: initiating PST update: grp = 1, dsk = 39/0xe9689532, mask = 0x6a, op = clear
GMON updating disk modes for group 1 at 452 for pid 30, osid 171838
NOTE: cache closing disk 32 of grp 1: (not open) 
ERROR: Disk 39 cannot be offlined, since all the disks [39, 32] with mirrored data would be offline.
ERROR: too many offline disks in PST (grp 1)
WARNING: Offline for disk  in mode 0x7f failed.
NOTE: cache dismounting (not clean) group 1/0x0728AD12 (DATAC1) 
NOTE: messaging CKPT to quiesce pins Unix process pid: 171838, image: oracle@dm01dbadm01.gyzq.cn (TNS V1-V3)
NOTE: dbwr not being msg'd to dismount
NOTE: lgwr not being msg'd to dismount
NOTE: cache dismounted group 1/0x0728AD12 (DATAC1) 
NOTE: cache ending mount (fail) of group DATAC1 number=1 incarn=0x0728ad12
NOTE: cache deleting context for group DATAC1 1/0x0728ad12
NOTE: cache closing disk 32 of grp 1: (not open) 
GMON dismounting group 1 at 453 for pid 30, osid 171838
NOTE: Disk DATAC1_CD_08_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_08_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_04_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_07_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_06_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_00_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_10_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_08_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_03_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_11_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_01_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_04_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_05_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_00_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_01_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_02_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_03_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_04_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_05_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_06_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_07_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk  in mode 0x1 marked for de-assignment
NOTE: Disk DATAC1_CD_09_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_10_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_11_DM01CELADM03 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_07_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_09_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_11_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk  in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_00_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_03_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_06_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_02_DM01CELADM02 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_05_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_01_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_02_DM01CELADM01 in mode 0x7f marked for de-assignment
NOTE: Disk DATAC1_CD_10_DM01CELADM01 in mode 0x7f marked for de-assignment
ERROR: diskgroup DATAC1 was not mounted
ORA-15032: not all alterations performed
ORA-15040: diskgroup is incomplete
ORA-15066: offlining disk "39" in group "DATAC1" may result in a data loss
ORA-15042: ASM disk "39" is missing from group number "1" 
ORA-15042: ASM disk "32" is missing from group number "1" 
ERROR: alter diskgroup datac1 mount force

故障原因是由于asm disk 32还已经损坏在换盘过程中(数据没有reblance完成),又损坏了asm disk 39,而这两份磁盘中有数据互为镜像,因此磁盘组无法正常mount起来.

检查cell节点celldisk和griddisk情况，确认底层磁盘损坏

对于这种情况,因为normal冗余的两份数据都有部分丢失,无法直接恢复数据,通过底层磁盘级别恢复(参考以前一次的Oracle exadata故障恢复:Oracle Exadata坏盘导致磁盘组无法mount恢复),然后比较顺利恢复数据,实现业务数据0丢失

SQL> alter datac1 mount;

Diskgroup altered.

SQL> alter diskgroup datac1 check all;

Diskgroup altered.

多套库顺利open成功

在实际恢复过程中由于客户进行了各种尝试,直接新镜像盘然后插入新盘,强制拉磁盘组drop异常disk操作等,导致第一现场发生一些破坏,增加了恢复难道,但是最终通过各种方法弥补,实现了预期的恢复效果(业务数据0丢失)

ORA-01122 ORA-01208 故障处理

Posted on 2023 年 07 月 15 日 by 惜分飞

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-01122 ORA-01208 故障处理

数据库突然故障ORA-01122 ORA-01208,导致实例crash

Tue Jul 11 09:06:43 2023
Thread 1 cannot allocate new log, sequence 254989
Private strand flush not complete
  Current log# 3 seq# 254988 mem# 0: E:\APP\ADMINISTRATOR\ORADATA\xff\REDO03.LOG
Thread 1 advanced to log sequence 254989 (LGWR switch)
  Current log# 1 seq# 254989 mem# 0: E:\APP\ADMINISTRATOR\ORADATA\xff\REDO01.LOG
Tue Jul 11 09:09:46 2023
Read of datafile 'E:\APP\ADMINISTRATOR\ORADATA\xff\SYSTEM01.DBF' (fno 1) header failed with ORA-01208
Rereading datafile 1 header found valid data
Repaired corruption in datafile 1 header
Read of datafile 'E:\APP\ADMINISTRATOR\ORADATA\xff\SYSAUX01.DBF' (fno 2) header failed with ORA-01208
Rereading datafile 2 header found valid data
Repaired corruption in datafile 2 header
Read of datafile 'E:\APP\ADMINISTRATOR\ORADATA\xff\UNDOTBS01.DBF' (fno 3) header failed with ORA-01208
Rereading datafile 3 header failed with ORA-01208
Errors in file E:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ckpt_5820.trc:
ORA-01242: data file suffered media failure: database in NOARCHIVELOG mode
ORA-01122: database file 3 failed verification check
ORA-01110: data file 3: 'E:\APP\ADMINISTRATOR\ORADATA\xff\UNDOTBS01.DBF'
ORA-01208: data file is an old version - not accessing current version
Errors in file E:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ckpt_5820.trc:
ORA-01242: data file suffered media failure: database in NOARCHIVELOG mode
ORA-01122: database file 3 failed verification check
ORA-01110: data file 3: 'E:\APP\ADMINISTRATOR\ORADATA\xff\UNDOTBS01.DBF'
ORA-01208: data file is an old version - not accessing current version
CKPT (ospid: 5820): terminating the instance due to error 1242
…………
Tue Jul 11 09:10:10 2023
Instance terminated by CKPT, pid = 5820
Tue Jul 11 09:18:32 2023

重启实例无法open

Tue Jul 11 09:18:41 2023
alter database mount exclusive
Successful mount of redo thread 1, with mount id 1485684209
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: alter database mount exclusive
alter database open
Errors in file E:\APP\ADMINISTRATOR\diag\rdbms\xff\xff\trace\xff_ora_406776.trc:
ORA-01113: file 3 needs media recovery
ORA-01110: data file 3: 'E:\APP\ADMINISTRATOR\ORADATA\xff\UNDOTBS01.DBF'
ORA-1113 signalled during: alter database open...

通过Oracle Database Recovery Check工具分析
20230715200500

确认数据库恢复需要sequence为254986的日志,但是数据库为非归档模式,redo已经被覆盖,因此常规方法无法正常open库,通过Oracle Recovery Tools工具快速修改文件头实现数据库文件头一致,open数据库成功
20230417230141

硬件故障恢复出文件之后数据库故障处理

Posted on 2023 年 07 月 13 日 by 惜分飞

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：硬件故障恢复出文件之后数据库故障处理

客户那边硬件故障(raid损坏磁盘超过了极限,导致raid offline),通过硬件恢复出来数据文件,然后尝试自行恢复,我接手的时候大量数据文件resetlogs scn异常.

重建控制文件报错

WARNING: Default Temporary Tablespace not specified in CREATE DATABASE command
Default Temporary Tablespace will be necessary for a locally managed database in future release
Errors in file /home/oracle/app/diag/rdbms/orcl/orcl/trace/orcl_ora_5949.trc:
ORA-01189: file is from a different RESETLOGS than previous files
ORA-01110: data file 153: '/home/oracle/oracledata/orcl/sysaux02.dbf'
ORA-1503 signalled during: CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS  ARCHIVELOG

通过修改文件头然后重建控制文件,可以通过bbed,或者我的小工具Oracle Recovery Tools
bbed解决ORA-01190
Oracle Recovery Tools 解决ORA-01190 ORA-01248等故障
 重建control遗漏数据文件,reseltogs报ORA-1555错误处理
然后继续重建ctl发现以下错误

WARNING: Default Temporary Tablespace not specified in CREATE DATABASE command
Default Temporary Tablespace will be necessary for a locally managed database in future release
Errors in file /home/oracle/app/diag/rdbms/orcl/orcl/trace/orcl_ora_34075.trc:
ORA-01200: actual file size of 2015415 is smaller than correct size of 2944000 blocks
ORA-01110: data file 178: '/home/oracle/oracledata/orcl/xifenfei20_10.dbf'
ORA-1503 signalled during: CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS  NOARCHIVELOG

通过对比发现是由于客户上传恢复文件异常导致

重新上传文件,然后修改文件头,该问题解决,重建ctl成功,提个醒:对于这种硬件恢复之后文件上次到服务器上进行恢复的,一定要确认上传文件和原文件一致,不然做无用功或者恢复效果差很多
尝试open数据库报ORA-600 2662错误

SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code, arguments: [2662], [5], [1653389530], [5],
[1653496702], [12583040], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [2662], [5], [1653389529], [5],
[1653496702], [12583040], [], [], [], [], [], []
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00600: internal error code, arguments: [2662], [5], [1653389527], [5],
[1653496702], [12583040], [], [], [], [], [], []
Process ID: 4710
Session ID: 1847 Serial number: 3

这个错误比较简单,一般是scn问题，有过大量的处理经验案例:
使用bbed解决ORA-00600[2662]
硬件故障导致ORA-600 2662错误处理
 Patch SCN工具快速解决ORA-600 2662问题
解决好该问题之后,数据库open成功,实现了最大限度抢救数据.

dul支持arm版本Oracle数据库恢复

Posted on 2023 年 07 月 09 日 by 惜分飞

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：dul支持arm版本Oracle数据库恢复

确认数据库名字,DBID,运行在ARM平台

SQL> select name,dbid,PLATFORM_ID,PLATFORM_NAME from v$database;

NAME            DBID PLATFORM_ID
--------- ---------- -----------
PLATFORM_NAME
--------------------------------------------------------------------------------
ARMDB     1195886419          23
Linux OS (AARCH64)

dul恢复ARM平台数据库
[oracle@xifenfei dul]$ ./dul

Data UnLoader: 12.2.0.2.5 - Internal Only - on Sun Jul  9 22:05:51 2023
with 64-bit io functions and the decompression option

Copyright (c) 1994 2023 Bernard van Duijnen All rights reserved.

 Strictly Oracle Internal Use Only


DUL: Warning: ulimit process stack size is only 33554432
Found db_id = 1195886419
Found db_name = ARMDB
DUL> bootstrap;
Probing file = 1, block = 520
. unloading table                BOOTSTRAP$
DUL: Warning: block number is non zero but marked deferred trying to process it anyhow
      60 rows unloaded
Reading BOOTSTRAP.dat 60 entries loaded
Parsing Bootstrap$ contents
Generating dict.ddl for version 12
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$   23092 rows unloaded
. unloading table                      TAB$    1794 rows unloaded
. unloading table                      COL$  118438 rows unloaded
. unloading table                     USER$      85 rows unloaded
Reading USER.dat 85 entries loaded
Reading OBJ.dat 23092 entries loaded and sorted 23092 entries
Reading TAB.dat 1794 entries loaded
Reading COL.dat 118438 entries loaded and sorted 118438 entries
Reading BOOTSTRAP.dat 60 entries loaded

DUL: Warning: Recreating file "dict.ddl"
Generating dict.ddl for version 12
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
 TABPART$: segobjno 822, file 1 block 5496
 INDPART$: segobjno 827, file 1 block 5536
 TABCOMPART$: segobjno 844, file 1 block 5672
 INDCOMPART$: segobjno 849, file 1 block 5712
 TABSUBPART$: segobjno 834, file 1 block 5592
 INDSUBPART$: segobjno 839, file 1 block 5632
 IND$: segobjno 2, tabno 3, file 1  block 144
 ICOL$: segobjno 2, tabno 4, file 1  block 144
 LOB$: segobjno 2, tabno 6, file 1  block 144
 COLTYPE$: segobjno 2, tabno 7, file 1  block 144
 TYPE$: segobjno 748, tabno 1, file 1  block 4960
 COLLECTION$: segobjno 748, tabno 2, file 1  block 4960
 ATTRIBUTE$: segobjno 748, tabno 3, file 1  block 4960
 LOBFRAG$: segobjno 855, file 1 block 5768
 LOBCOMPPART$: segobjno 858, file 1 block 5792
 UNDO$: segobjno 15, file 1 block 224
 TS$: segobjno 6, tabno 2, file 1  block 176
 PROPS$: segobjno 127, file 1 block 1320
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$
DUL: Warning: Recreating file "OBJ.ctl"
   23092 rows unloaded
. unloading table                      TAB$
DUL: Warning: Recreating file "TAB.ctl"
    1794 rows unloaded
. unloading table                      COL$
DUL: Warning: Recreating file "COL.ctl"
  118438 rows unloaded
. unloading table                     USER$
DUL: Warning: Recreating file "USER.ctl"
      85 rows unloaded
. unloading table                  TABPART$     320 rows unloaded
. unloading table                  INDPART$     186 rows unloaded
. unloading table               TABCOMPART$       1 row  unloaded
. unloading table               INDCOMPART$       0 rows unloaded
. unloading table               TABSUBPART$      32 rows unloaded
. unloading table               INDSUBPART$       0 rows unloaded
. unloading table                      IND$    2273 rows unloaded
. unloading table                     ICOL$    4155 rows unloaded
. unloading table                      LOB$     566 rows unloaded
. unloading table                  COLTYPE$    2794 rows unloaded
. unloading table                     TYPE$    4381 rows unloaded
. unloading table               COLLECTION$     983 rows unloaded
. unloading table                ATTRIBUTE$   11584 rows unloaded
. unloading table                  LOBFRAG$       8 rows unloaded
. unloading table              LOBCOMPPART$       0 rows unloaded
. unloading table                     UNDO$      11 rows unloaded
. unloading table                       TS$       5 rows unloaded
. unloading table                    PROPS$      39 rows unloaded
Reading USER.dat 85 entries loaded
Reading OBJ.dat 23092 entries loaded and sorted 23092 entries
Reading TAB.dat 1794 entries loaded
Reading COL.dat 118438 entries loaded and sorted 118438 entries
Reading TABPART.dat 320 entries loaded and sorted 320 entries
Reading TABCOMPART.dat 1 entries loaded and sorted 1 entries
Reading TABSUBPART.dat 32 entries loaded and sorted 32 entries
Reading INDPART.dat 186 entries loaded and sorted 186 entries
Reading INDCOMPART.dat 0 entries loaded and sorted 0 entries
Reading INDSUBPART.dat 0 entries loaded and sorted 0 entries
Reading IND.dat 2273 entries loaded
Reading LOB.dat 566 entries loaded
Reading ICOL.dat 4155 entries loaded
Reading COLTYPE.dat 2794 entries loaded
Reading TYPE.dat
DUL: Notice: Increased the size of DC_TYPES from 4096 to 32768 entries
 4381 entries loaded
Reading ATTRIBUTE.dat 11584 entries loaded
Reading COLLECTION.dat 983 entries loaded
Reading BOOTSTRAP.dat 60 entries loaded
Reading LOBFRAG.dat 8 entries loaded and sorted 8 entries
Reading LOBCOMPPART.dat 0 entries loaded and sorted 0 entries
Reading UNDO.dat 11 entries loaded
Reading TS.dat 5 entries loaded
Reading PROPS.dat 39 entries loaded
Database character set is AL32UTF8
Database national character set is AL16UTF16
DUL> unload table sys.obj$;
. unloading table                      OBJ$   23092 rows unloaded
DUL>

通过上述测试,证明dul支持arm版本Oracle数据库恢复