Category Archives: 非常规恢复

记录一次asm disk加入到vg通过恢复直接open库的案例

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标题：记录一次asm disk加入到vg通过恢复直接open库的案例

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

客户在不清楚磁盘被asm disk使用的情况下,直接分区做pv,加入到vg中并且分配给了lv,导致数据库异常
QQ20250504
144809

通过操作系统层面分析,确认客户把data磁盘组的一个磁盘给处理掉了,导致数据库报错

WARNING: ASMB force dismounting group 2 (DATA) due to failover
SUCCESS: diskgroup DATA was dismounted
2025-05-04T07:03:19.910082+08:00
KCF: read, write or open error, block=0x201544 online=1
        file=102 '+DATA/ORCL/F7D939D6DBE06C71E053C30114AC1F10/DATAFILE/xifenfei_61.dbf'
        error=15078 txt: ''
2025-05-04T07:03:19.918972+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_dbwc_18507.trc:
2025-05-04T07:03:19.952045+08:00
KCF: read, write or open error, block=0x2013e7 online=1
        file=102 '+DATA/ORCL/F7D939D6DBE06C71E053C30114AC1F10/DATAFILE/xifenfei_61.dbf'
        error=15078 txt: ''
2025-05-04T07:03:19.964538+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_dbw7_18486.trc:
2025-05-04T07:03:19.967133+08:00
KCF: read, write or open error, block=0x230e71 online=1
        file=105 '+DATA/ORCL/F7D939D6DBE06C71E053C30114AC1F10/DATAFILE/xifenfei_64.dbf'
        error=15078 txt: ''
2025-05-04T07:03:19.973289+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_dbw2_18466.trc:
2025-05-04T07:03:19.978514+08:00
KCF: read, write or open error, block=0x1f6e91 online=1
        file=86 '+DATA/ORCL/F7D939D6DBE06C71E053C30114AC1F10/DATAFILE/xifenfei_52.dbf'
        error=15078 txt: ''
2025-05-04T07:03:19.991060+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_dbwd_18511.trc:
2025-05-04T07:03:19.995762+08:00
KCF: read, write or open error, block=0x7f8 online=1
        file=15 '+DATA/ORCL/F7D939D6DBE06C71E053C30114AC1F10/DATAFILE/undotbs01.dbf'
        error=15078 txt: ''
2025-05-04T07:03:20.006862+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_dbwa_18498.trc:
2025-05-04T07:03:20.020739+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_imr0_18937.trc:

这个客户比较幸运,处理该磁盘之后,没有往对应的lv中写入太多数据,导致覆盖部分很少

[root@rac01 rules.d]# df -h
文件系统               容量  已用  可用 已用% 挂载点
/dev/mapper/nlas-root  800G  272G  528G   34% /
devtmpfs               284G     0  284G    0% /dev
tmpfs                  284G  637M  283G    1% /dev/shm
tmpfs                  284G  4.0G  280G    2% /run
tmpfs                  284G     0  284G    0% /sys/fs/cgroup
/dev/mapper/nlas-home  200G   64M  200G    1% /home
/dev/sda1              197M  158M   40M   80% /boot
tmpfs                   57G   40K   57G    1% /run/user/0
tmpfs                   57G   48K   57G    1% /run/user/1000
[root@rac01 rules.d]# pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/sda2  nlas lvm2 a--  564.00g    0 
  /dev/sdb1  nlas lvm2 a--   <2.00t 1.51t
[root@rac01 rules.d]# vgs
  VG   #PV #LV #SN Attr   VSize VFree
  nlas   2   3   0 wz--n- 2.55t 1.51t
[root@rac01 rules.d]# lvs
  LV   VG   Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  home nlas -wi-ao---- 200.00g                                                    
  root nlas -wi-ao---- 800.00g                                                    
  swap nlas -wi-ao----  64.00g

通过底层对磁盘进行分析,发现备份的磁盘头均以损坏,通过深入分析确认f1b1在sdb磁盘的第10个au上,通过相关信息,使用dul工具加载磁盘组,并分析元数据信息,发现恢复数据需要的元数据都可以正常加载
asm-dul

直接使用dul抽取数据到文件系统,然后open数据库成功
open-asm
然后通过rman 检测坏块(3T多的库只有不到5000个坏块,相对来说效果非常好),对于坏块对象进行处理,完美完成本次恢复工作.对于这次能够有这样好的恢复效果有几个因素:
1)asm disk 加入到vg,并分配给lv之后,立刻停止写入操作,避免了因为写入数据而覆盖asm 磁盘的带来的风险
2)由于是19c库,默认au为4M,使得数据库文件数据相对比较靠后,覆盖几率小了一点
3)由于文件系统是xfs,相对覆盖比ext4会少很多
4)是云环境的ssd磁盘,没有触发trim功能
以前类似asm disk异常恢复的相关case汇总:
asm磁盘加入vg恢复
asm磁盘dd破坏恢复
asm磁盘分区丢失恢复
pvid=yes导致asm无法mount
win asm disk header 异常恢复
又一例asm disk 加入vg故障
pvcreate asm disk导致asm磁盘组异常恢复
asm disk被加入到另外一个磁盘组故障恢复
再一例asm disk被误加入vg并且扩容lv恢复
再一起asm disk被格式化成ext3文件系统故障恢复
一次完美的asm disk被格式化ntfs恢复
asm disk误设置pvid导致asm diskgroup无法mount恢复
asm disk被分区,格式化为ext4恢复
oracle asm disk格式化恢复—格式化为ext4文件系统
分享oracleasm createdisk重新创建asm disk后数据0丢失恢复案例

ORA-39773: parse of metadata stream failed故障处理

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联系：手机/微信(+86 17813235971) QQ(107644445)QQ咨询惜分飞

标题：ORA-39773: parse of metadata stream failed故障处理

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

客户expdp导出数据,在写入生成SYS_EXPORT_SCHEMA表所在的users表空间不足,导致expdp报部分异常

Export: Release 11.2.0.4.0 - Production on Thu Feb 27 15:12:36 2025

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
;;; 
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
FLASHBACK automatically enabled to preserve database integrity.
Starting "XFF"."SYS_EXPORT_SCHEMA_95":XFF/**** directory=DUMP dumpfile=20250227.dmp logfile=20250227.log schemas=XFF 
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
ORA-39171: Job is experiencing a resumable wait.
ORA-01653: unable to extend table XFF.SYS_EXPORT_SCHEMA_95 by 128 in tablespace USERS
Total estimation using BLOCKS method: 481.9 GB
Processing object type SCHEMA_EXPORT/USER
Processing object type SCHEMA_EXPORT/SYSTEM_GRANT
Processing object type SCHEMA_EXPORT/ROLE_GRANT
Processing object type SCHEMA_EXPORT/DEFAULT_ROLE
Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA
Processing object type SCHEMA_EXPORT/TYPE/TYPE_SPEC
Processing object type SCHEMA_EXPORT/SEQUENCE/SEQUENCE
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE
Processing object type SCHEMA_EXPORT/PACKAGE/COMPILE_PACKAGE/PACKAGE_SPEC/ALTER_PACKAGE_SPEC
Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/INDEX/FUNCTIONAL_INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/FUNCTIONAL_INDEX/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/VIEW/VIEW
Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_BODY
Processing object type SCHEMA_EXPORT/TABLE/TRIGGER
Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Processing object type SCHEMA_EXPORT/MATERIALIZED_VIEW
Processing object type SCHEMA_EXPORT/JOB
. . exported "XFF"."PUB_WORKINGTASKLOG"              88.09 GB  112681 rows
. . exported "XFF"."SM_BUSILOG_DEFAULT"              51.94 GB 3149092 rows
. . exported "XFF"."FFW_DISTRIBUTESUBTASK"           46.47 GB  552214 rows
. . exported "XFF"."GL_DETAIL"                       11.32 GB 16214805 rows
…………
. . exported "XFF"."ZDP_10000000RR8NKX"                  0 KB       0 rows
. . exported "XFF"."ZDP_10000000RTB1GI"                  0 KB       0 rows
. . exported "XFF"."ZDP_10000000RTB1GK"                  0 KB       0 rows
Master table "XFF"."SYS_EXPORT_SCHEMA_95" successfully loaded/unloaded
******************************************************************************
Dump file set for XFF.SYS_EXPORT_SCHEMA_95 is:
  /rman_bak/dump/20200227.dmp
Job "XFF"."SYS_EXPORT_SCHEMA_95" completed with 10 error(s) at Thu Feb 27 19:32:22 2025 elapsed 0 04:16:28

尝试把该dmp导入数据库,报ORA-31694/ORA-02354/ORA-39773错误

Import: Release 11.2.0.4.0 - Production on 星期日 3月 16 02:38:14 2025

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
;;; 
连接到: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-31694: 加载/卸载主表 "XFF"."SYS_IMPORT_FULL_01" 失败
ORA-02354: 导出/导入数据时出错
ORA-39773: parse of metadata stream failed

客户需要恢复其中的GL_DETAIL表数据,通过dul实现expdp dump文件转换sqlldr格式方法进行恢复,实现数据完美恢复
QQ20250322-211130

对于dmp(exp/expdp)文件,我们可以实现比较完美的恢复,最后限度抢救数据.如果你有oracle expdp/exp dmp被加密或者破坏,无法正常导入数据库,可以联系我们对其进行恢复处理:提供(ORACLE数据库恢复技术支持)：
Phone:17813235971    Q Q:107644445    E-Mail:dba@xifenfei.com

aix磁盘损坏oracle数据库恢复

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联系：手机/微信(+86 17813235971) QQ(107644445)QQ咨询惜分飞

标题：aix磁盘损坏oracle数据库恢复

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

客户aix环境硬盘异常导致系统无法启动,初步判断是数据文件存放在本地磁盘的空间中(本地两个盘都异常,系统无法启动),通过硬件恢复厂商镜像出来,但是通过aix文件系统直接挂载提示需要fsck,但是做fsck之后,提示大量文件丢失(最关键的数据文件和备份文件都被自动删除)
dmp-remove
fsck-remove

基于这种情况,采用镜像主机挂载的方式肯定不行,考虑直接采用软件直接解析,能够看到软件,可惜由于大量的文件系统元数据损坏,解析出来的数据文件和dmp也不可用(大量损坏和空块)
QQ20250307-122939
基于上述情况,只能采用碎片级别恢复出来数据文件
QQ20250307-123123
然后使用dul工具把数据恢复到表中,实现最大限度抢救客户数据
QQ20250307-123653
对于数据库级别恢复,这个是理论上的终极恢复方法

ORA-01092 ORA-00604 ORA-01558故障处理

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联系：手机/微信(+86 17813235971) QQ(107644445)QQ咨询惜分飞

标题：ORA-01092 ORA-00604 ORA-01558故障处理

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

客户一个11.2.0.1的库,在重启之前报ORA-00604和ORA-01558: out of transaction ID’s in rollback segment SYSTEM错误

Sat Mar 16 05:51:44 2024
Errors in file /opt/oracle/app/diag/rdbms/xff/xff/trace/xff_smon_47709.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-01558: out of transaction ID's in rollback segment SYSTEM
Sat Mar 16 05:51:55 2024
Errors in file /opt/oracle/app/diag/rdbms/xff/xff/trace/xff_smon_47709.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-01558: out of transaction ID's in rollback segment SYSTEM

数据库关闭之后无法open,报ORA-01092 ORA-00604 ORA-01558错误

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00604: error occurred at recursive SQL level 1
ORA-01558: out of transaction ID's in rollback segment SYSTEM
Process ID: 44308
Session ID: 769 Serial number: 3

对应的alert日志信息

Fri Aug 30 20:05:40 2024
alter database open
Beginning crash recovery of 1 threads
Fri Aug 30 20:06:08 2024
 parallel recovery started with 32 processes
Started redo scan
Completed redo scan
 read 0 KB redo, 0 data blocks need recovery
Started redo application at
 Thread 1: logseq 7583120, block 130906, scn 832944617073
Recovery of Online Redo Log: Thread 1 Group 6 Seq 7583120 Reading mem 0
  Mem# 0: /OracleData/db_mc/xff/redo06.log
Completed redo application of 0.00MB
Completed crash recovery at
 Thread 1: logseq 7583120, block 130906, scn 832944637074
 0 data blocks read, 0 data blocks written, 0 redo k-bytes read
Fri Aug 30 20:06:09 2024
Thread 1 advanced to log sequence 7583121 (thread open)
Thread 1 opened at log sequence 7583121
  Current log# 4 seq# 7583121 mem# 0: /OracleData/db_mc/xff/redo04.log
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Fri Aug 30 20:06:09 2024
SMON: enabling cache recovery
Errors in file /opt/oracle/app/diag/rdbms/xff/xff/trace/xff_ora_6066.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-01558: out of transaction ID's in rollback segment SYSTEM
Errors in file /opt/oracle/app/diag/rdbms/xff/xff/trace/xff_ora_6066.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-01558: out of transaction ID's in rollback segment SYSTEM
Error 604 happened during db open, shutting down database
USER (ospid: 6066): terminating the instance due to error 604
Instance terminated by USER, pid = 6066
ORA-1092 signalled during: alter database open...
opiodr aborting process unknown ospid (6066) as a result of ORA-1092

通过对异常block进行dump

  index  state cflags  wrap#    uel         scn            dba            parent-xid    nub     stmt_num
  ------------------------------------------------------------------------------------------------
   0x00    9    0x00  0xfffffffe  0x0059  0x00c1.ee6ab58f  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x01    9    0x00  0xfffffffe  0x0008  0x00c1.ee6ab5a7  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x02    9    0x00  0xfffffffe  0x005b  0x00c1.ee6ab59f  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x03    9    0x00  0xfffffffe  0x0007  0x00c1.ee6ab5b5  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x04    9    0x00  0xfffffffe  0x005f  0x00c1.ee6ab593  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x05    9    0x00  0xfffffffe  0x000a  0x00c1.ee6ab5ad  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x06    9    0x00  0xfffffffe  0x0019  0x00c1.ee6ab5dd  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x07    9    0x00  0xfffffffe  0x0013  0x00c1.ee6ab5b7  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x08    9    0x00  0xfffffffe  0x0035  0x00c1.ee6ab5a9  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x09    9    0x00  0xfffffffe  0x0002  0x00c1.ee6ab59d  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x0a    9    0x00  0xfffffffe  0x003c  0x00c1.ee6ab5af  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x0b    9    0x00  0xfffffffe  0x0011  0x00c1.ee6ab5d7  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x0c    9    0x00  0xfffffffe  0x0026  0x00c1.ee6ab605  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x0d    9    0x00  0xfffffffe  0x000f  0x00c1.ee6ab5c5  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x0e    9    0x00  0xfffffffe  0x0014  0x00c1.ee6ab5d3  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x0f    9    0x00  0xfffffffe  0x0012  0x00c1.ee6ab5c7  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x10    9    0x00  0xfffffffe  0x0029  0x00c1.ee6ab5c1  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x11    9    0x00  0xfffffffe  0x0018  0x00c1.ee6ab5d9  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x12    9    0x00  0xfffffffe  0x001e  0x00c1.ee6ab5c9  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x13    9    0x00  0xfffffffe  0x001b  0x00c1.ee6ab5b9  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x14    9    0x00  0xfffffffe  0x000b  0x00c1.ee6ab5d5  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x15    9    0x00  0xfffffffe  0x0003  0x00c1.ee6ab5b3  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x16    9    0x00  0xfffffffe  0x0023  0x00c1.ee6ab5f1  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x17    9    0x00  0xfffffffe  0x0021  0x00c1.ee6ab5bd  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x18    9    0x00  0xfffffffe  0x0006  0x00c1.ee6ab5db  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x19    9    0x00  0xfffffffe  0x0049  0x00c1.ee6ab5df  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x1a    9    0x00  0xfffffffe  0x0043  0x00c1.ee6ab617  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x1b    9    0x00  0xfffffffe  0x0017  0x00c1.ee6ab5bb  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x1c    9    0x00  0xfffffffe  0x002e  0x00c1.ee6ab5e9  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x1d    9    0x00  0xfffffffe  0x001c  0x00c1.ee6ab5e7  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x1e    9    0x00  0xfffffffe  0x002a  0x00c1.ee6ab5cb  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x1f    9    0x00  0xffffff28  0x003e  0x00c1.ee6ab62d  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x20    9    0x00  0xfffffffe  0x0022  0x00c1.ee6ab5cf  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x21    9    0x00  0xfffffffe  0x0010  0x00c1.ee6ab5bf  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x22    9    0x00  0xfffffffe  0x000e  0x00c1.ee6ab5d1  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x23    9    0x00  0xfffffffe  0x0025  0x00c1.ee6ab5f3  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x24    9    0x00  0xfffffffe  0x0032  0x00c1.ee6ab5f7  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x25    9    0x00  0xfffffffd  0x0024  0x00c1.ee6ab5f5  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x26    9    0x00  0xfffffffe  0x003d  0x00c1.ee6ab607  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x27    9    0x00  0xfffffffe  0x0041  0x00c1.ee6ab63b  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x28    9    0x00  0xfffffffe  0x003f  0x00c1.ee6ab613  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x29    9    0x00  0xfffffffb  0x000d  0x00c1.ee6ab5c3  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x2a    9    0x00  0xfffffffe  0x0020  0x00c1.ee6ab5cd  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x2b    9    0x00  0xfffffffe  0x0037  0x00c1.ee6ab60d  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x2c    9    0x00  0xfffffffe  0x002d  0x00c1.ee6ab5ed  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x2d    9    0x00  0xfffffffe  0x0016  0x00c1.ee6ab5ef  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x2e    9    0x00  0xfffffffe  0x002c  0x00c1.ee6ab5eb  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x2f    9    0x00  0xfffffffe  0x0034  0x00c1.ee6ab5ff  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x30    9    0x00  0xfffffffe  0x001f  0x00c1.ee6ab62b  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x31    9    0x00  0xfffffffe  0x000c  0x00c1.ee6ab603  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x32    9    0x00  0xfffffffe  0x003b  0x00c1.ee6ab5f9  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x33    9    0x00  0xfffffffa  0x0038  0x00c1.ee6ab61b  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x34    9    0x00  0xfffffffe  0x0031  0x00c1.ee6ab601  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x35    9    0x00  0xfffffffd  0x0005  0x00c1.ee6ab5ab  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x36    9    0x00  0xfffffffe  0x0028  0x00c1.ee6ab611  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x37    9    0x00  0xfffffffe  0x0036  0x00c1.ee6ab60f  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x38    9    0x00  0xfffffffe  0x0048  0x00c1.ee6ab61d  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x39    9    0x00  0xfffffffe  0x0052  0x00c1.ee6ab64d  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x3a    9    0x00  0xfffffffe  0x002f  0x00c1.ee6ab5fd  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x3b    9    0x00  0xfffffffe  0x003a  0x00c1.ee6ab5fb  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x3c    9    0x00  0xfffffffd  0x0015  0x00c1.ee6ab5b1  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x3d    9    0x00  0xfffffffe  0x0061  0x00c1.ee6ab609  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x3e    9    0x00  0xfffffffe  0x004d  0x00c1.ee6ab62f  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x3f    9    0x00  0xfffffffe  0x001a  0x00c1.ee6ab615  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x40    9    0x00  0xfffffffd  0x001d  0x00c1.ee6ab5e5  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x41    9    0x00  0xfffffffe  0x0058  0x00c1.ee6ab63d  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x42    9    0x00  0xfffffffe  0x0027  0x00c1.ee6ab639  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x43    9    0x00  0xfffffffe  0x0033  0x00c1.ee6ab619  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x44    9    0x00  0xfffffffe  0x0050  0x00c1.ee6ab635  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x45    9    0x00  0xfffffffe  0x0044  0x00c1.ee6ab633  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x46    9    0x00  0xfffffffe  0x0057  0x00c1.ee6ab625  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x47    9    0x00  0xfffffffe  0x0030  0x00c1.ee6ab629  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x48    9    0x00  0xfffffffe  0x004c  0x00c1.ee6ab61f  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x49    9    0x00  0xfffffffd  0x004e  0x00c1.ee6ab5e1  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x4a    9    0x00  0xfffffffe  0x0054  0x00c1.ee6ab641  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x4b    9    0x00  0xfffffffe  0x0046  0x00c1.ee6ab623  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x4c    9    0x00  0xfffffffe  0x004b  0x00c1.ee6ab621  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x4d    9    0x00  0xfffffffe  0x0045  0x00c1.ee6ab631  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x4e    9    0x00  0xfffffffd  0x0040  0x00c1.ee6ab5e3  0x03000437  0x0000.000.00000000  0x00000001   0x00000000
   0x4f    9    0x00  0xfffffffd  0x005a  0x00c1.ee6ab599  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x50    9    0x00  0xfffffffe  0x0042  0x00c1.ee6ab637  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x51    9    0x00  0xfffffffe  0x0053  0x00c1.ee6ab645  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x52    9    0x00  0xfffffffe  0x0060  0x00c1.ee6ab64f  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x53    9    0x00  0xfffffffe  0x0056  0x00c1.ee6ab647  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x54    9    0x00  0xfffffffe  0x0051  0x00c1.ee6ab643  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x55    9    0x00  0xfffffffe  0x0039  0x00c1.ee6ab64b  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x56    9    0x00  0xfffffffe  0x0055  0x00c1.ee6ab649  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x57    9    0x00  0xfffffffe  0x0047  0x00c1.ee6ab627  0x03000438  0x0000.000.00000000  0x00000001   0x00000000
   0x58    9    0x00  0xfffffffe  0x004a  0x00c1.ee6ab63f  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x59    9    0x00  0xfffffffd  0x0004  0x00c1.ee6ab591  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5a    9    0x00  0xfffffffd  0x0009  0x00c1.ee6ab59b  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5b    9    0x00  0xfffffffd  0x005e  0x00c1.ee6ab5a1  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5c    9    0x00  0xfffffffd  0x0001  0x00c1.ee6ab5a5  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5d    9    0x00  0xfffffffd  0x004f  0x00c1.ee6ab597  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5e    9    0x00  0xfffffffd  0x005c  0x00c1.ee6ab5a3  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x5f    9    0x00  0xfffffffd  0x005d  0x00c1.ee6ab595  0x03000436  0x0000.000.00000000  0x00000001   0x00000000
   0x60    9    0x00  0xfffffffe  0xffff  0x00c1.ee6ab651  0x03000439  0x0000.000.00000000  0x00000001   0x00000000
   0x61    9    0x00  0xfffffdb4  0x002b  0x00c1.ee6ab60b  0x03000438  0x0000.000.00000000  0x00000001   0x00000000

确实是Wrap#达到了极限值,通过bbed也可以进一步确认

BBED> p ktuxe[1]
struct ktuxe[1], 40 bytes                   @4292
   ub4 ktuxexid                             @4292     0xfffffffe
   ub4 ktuxebrb                             @4296     0x03000436
   struct ktuxescn, 8 bytes                 @4300
      ub4 kscnbas                           @4300     0xee6ab5a7
      ub2 kscnwrp                           @4304     0x00c1
   sb4 ktuxesta                             @4308     524297 (KTU_SCO, KTU_DEAD)
   ub1 ktuxecfl                             @4309     0x00
   sb2 ktuxeuel                             @4310     8

BBED> p ktuxe[2]
struct ktuxe[2], 40 bytes                   @4332
   ub4 ktuxexid                             @4332     0xfffffffe
   ub4 ktuxebrb                             @4336     0x03000436
   struct ktuxescn, 8 bytes                 @4340
      ub4 kscnbas                           @4340     0xee6ab59f
      ub2 kscnwrp                           @4344     0x00c1
   sb4 ktuxesta                             @4348     5963785 (KTU_SCO, KTU_DEAD)
   ub1 ktuxecfl                             @4349     0x00
   sb2 ktuxeuel                             @4350     91

处理方法,通过bbed对异常的block进行编辑,修改Wrap#的值,重新dumpblock进行确认

  index  state cflags  wrap#    uel         scn            dba            parent-xid    nub     stmt_num
  ------------------------------------------------------------------------------------------------
   0x00    9    0x00  0x0015  0x0003  0x0000.11e1a313  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x01    9    0x00  0x0015  0x0007  0x0000.11e1a317  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x02    9    0x00  0x0015  0x000c  0x0000.11e32087  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x03    9    0x00  0x0015  0x005a  0x0000.11e1a314  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x04    9    0x00  0x0015  0x0060  0x0000.11e3206e  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x05    9    0x00  0x0015  0x005d  0x0000.11e1a311  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x06    9    0x00  0x0015  0x0015  0x0000.11e3208b  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x07    9    0x00  0x0015  0x0004  0x0000.11e1a318  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x08    9    0x00  0x0015  0x0014  0x0000.11e32084  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x09    9    0x00  0x0015  0x0001  0x0000.11e1a316  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x0a    9    0x00  0x0015  0x0013  0x0000.11e3207d  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x0b    9    0x00  0x0015  0x0011  0x0000.11e3207f  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x0c    9    0x00  0x0015  0x0059  0x0000.11e32089  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x0d    9    0x00  0x0015  0x000a  0x0000.11e3207c  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x0e    9    0x00  0x0015  0x0017  0x0000.11e32082  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x0f    9    0x00  0x0015  0x002a  0x0000.120964dc  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x10    9    0x00  0x0015  0x001a  0x0000.11e3208d  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x11    9    0x00  0x0015  0x005f  0x0000.11e32080  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x12    9    0x00  0x0015  0x0028  0x0000.120964d9  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x13    9    0x00  0x0015  0x000b  0x0000.11e3207e  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x14    9    0x00  0x0015  0x0018  0x0000.11e32085  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x15    9    0x00  0x0015  0x0010  0x0000.11e3208c  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x16    9    0x00  0x0015  0x0032  0x0000.120964e2  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x17    9    0x00  0x0015  0x0008  0x0000.11e32083  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x18    9    0x00  0x0015  0x0002  0x0000.11e32086  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x19    9    0x00  0x0015  0x0020  0x0000.120964d3  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x1a    9    0x00  0x0015  0x0025  0x0000.120964c5  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x1b    9    0x00  0x0015  0x0021  0x0000.120964d6  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x1c    9    0x00  0x0015  0x001b  0x0000.120964d5  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x1d    9    0x00  0x0015  0x0019  0x0000.120964d2  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x1e    9    0x00  0x0015  0x0030  0x0000.1210ab57  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x1f    9    0x00  0x0015  0x000f  0x0000.120964db  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x20    9    0x00  0x0015  0x001c  0x0000.120964d4  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x21    9    0x00  0x0015  0x0012  0x0000.120964d8  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x22    9    0x00  0x0015  0x0029  0x0000.120964de  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x23    9    0x00  0x0015  0x0031  0x0000.120964e4  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x24    9    0x00  0x0015  0x001d  0x0000.120964d1  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x25    9    0x00  0x0014  0x0024  0x0000.120964cf  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x26    9    0x00  0x0015  0x003b  0x0000.1210ab5b  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x27    9    0x00  0x0014  0x0058  0x0000.0ec9fb55  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x28    9    0x00  0x0015  0x001f  0x0000.120964da  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x29    9    0x00  0x0015  0x002b  0x0000.120964df  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x2a    9    0x00  0x0015  0x0022  0x0000.120964dd  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x2b    9    0x00  0x0015  0x002d  0x0000.120964e0  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x2c    9    0x00  0x0015  0x003d  0x0000.1210ab60  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x2d    9    0x00  0x0015  0x0016  0x0000.120964e1  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x2e    9    0x00  0x0014  0x003c  0x0000.0ec9fb51  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x2f    9    0x00  0x0015  0x0045  0x0000.1210ab65  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x30    9    0x00  0x0015  0x0034  0x0000.1210ab58  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x31    9    0x00  0x0015  0x0036  0x0000.1210ab4b  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x32    9    0x00  0x0015  0x0023  0x0000.120964e3  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x33    9    0x00  0x0015  0x0041  0x0000.1210ab67  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x34    9    0x00  0x0015  0x003a  0x0000.1210ab59  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x35    9    0x00  0x0015  0x002c  0x0000.1210ab5e  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x36    9    0x00  0x0015  0x001e  0x0000.1210ab55  0x00400225  0x0000.000.00000000  0x00000001   0x00000000
   0x37    9    0x00  0x0014  0x0050  0x0000.0ec9fb53  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x38    9    0x00  0x0015  0x003f  0x0000.1210ab62  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x39    9    0x00  0x0015  0x0035  0x0000.1210ab5d  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x3a    9    0x00  0x0015  0x0026  0x0000.1210ab5a  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x3b    9    0x00  0x0015  0x0039  0x0000.1210ab5c  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x3c    9    0x00  0x0014  0x0037  0x0000.0ec9fb52  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x3d    9    0x00  0x0015  0x0038  0x0000.1210ab61  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x3e    9    0x00  0x0014  0x0040  0x0000.0ec9fb49  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x3f    9    0x00  0x0015  0x0044  0x0000.1210ab63  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x40    9    0x00  0x0014  0x004b  0x0000.0ec9fb4a  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x41    9    0x00  0x0015  0x0043  0x0000.1210ab68  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x42    9    0x00  0x0015  0xffff  0x0000.1210ab6b  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x43    9    0x00  0x0015  0x0042  0x0000.1210ab69  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x44    9    0x00  0x0015  0x002f  0x0000.1210ab64  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x45    9    0x00  0x0015  0x0033  0x0000.1210ab66  0x00400226  0x0000.000.00000000  0x00000001   0x00000000
   0x46    9    0x00  0x0014  0x004e  0x0000.0ec9fb4e  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x47    9    0x00  0x0014  0x004f  0x0000.0ec9fb4c  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x48    9    0x00  0x0014  0x0054  0x0000.11e1a306  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x49    9    0x00  0x0014  0x0055  0x0000.0ec9fd5b  0x00400223  0x0000.000.00000000  0x00000002   0x00000000
   0x4a    9    0x00  0x0014  0x003e  0x0000.0ec9fb48  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x4b    9    0x00  0x0014  0x0047  0x0000.0ec9fb4b  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x4c    9    0x00  0x0014  0x000d  0x0000.11e3207b  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x4d    9    0x00  0x0014  0x0061  0x0000.11e1a30f  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x4e    9    0x00  0x0014  0x002e  0x0000.0ec9fb4f  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x4f    9    0x00  0x0014  0x0046  0x0000.0ec9fb4d  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x50    9    0x00  0x0014  0x0027  0x0000.0ec9fb54  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x51    9    0x00  0x0014  0x0053  0x0000.11e1a30a  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x52    9    0x00  0x0014  0x005b  0x0000.11e1a30c  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x53    9    0x00  0x0014  0x0052  0x0000.11e1a30b  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x54    9    0x00  0x0014  0x0057  0x0000.11e1a307  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x55    9    0x00  0x0014  0x0048  0x0000.11e1a304  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x56    9    0x00  0x0014  0x0051  0x0000.11e1a309  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x57    9    0x00  0x0014  0x0056  0x0000.11e1a308  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x58    9    0x00  0x0014  0x0049  0x0000.0ec9fb56  0x00400222  0x0000.000.00000000  0x00000001   0x00000000
   0x59    9    0x00  0x0014  0x0006  0x0000.11e3208a  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x5a    9    0x00  0x0014  0x0009  0x0000.11e1a315  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x5b    9    0x00  0x0014  0x005e  0x0000.11e1a30d  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x5c    9    0x00  0x0014  0x004c  0x0000.11e3207a  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x5d    9    0x00  0x0014  0x0000  0x0000.11e1a312  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x5e    9    0x00  0x0014  0x004d  0x0000.11e1a30e  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x5f    9    0x00  0x0014  0x000e  0x0000.11e32081  0x00400224  0x0000.000.00000000  0x00000001   0x00000000
   0x60    9    0x00  0x0014  0x005c  0x0000.11e32078  0x00400223  0x0000.000.00000000  0x00000001   0x00000000
   0x61    9    0x00  0x0014  0x0005  0x0000.11e1a310  0x00400223  0x0000.000.00000000  0x00000001   0x00000000

直接启动数据库成功

[oracle@www.xifenfei.com ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Sep 21 13:45:23 2024

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup mount pfile='/tmp/pfile';
ORACLE instance started.

Total System Global Area 8551575552 bytes
Fixed Size		    2215064 bytes
Variable Size		 2483028840 bytes
Database Buffers	 6039797760 bytes
Redo Buffers		   26533888 bytes
Database mounted.
SQL> recover database;
Media recovery complete.
SQL> alter database open;       

Database altered.

由于客户遇到故障之后,第一时间保护了现场,没有进行二次破坏,使用bbed进行修改block,实现完美恢复.
以前有过一次在11.2.0.4的环境中恢复的同样案例:ORA-01558: out of transaction ID’s in rollback segment SYSTEM
通过查询mos,确认类似Bug 19700135 – ORA-600 [4187] when the undo segment wrap# is close to the max value of 0xffffffff (Doc ID 19700135.8)
bug-19700135

Description
ORA-600 [4187] can occur for undo segments where wrap# is close to the max value of 0xffffffff (KSQNMAXVAL).
This normally affects databases with high transaction rate that have existed for a relatively long time.
 
To identify undo segments causing the above error and others that may potentially cause it 
in the future, run the next query:
 
 select b.segment_name, b.tablespace_name 
         ,a.ktuxeusn "Undo Segment Number"
         ,a.ktuxeslt "Slot"
         ,a.ktuxesqn "Wrap#"
   from  x$ktuxe a, dba_rollback_segs b
   where a.ktuxesqn > -429496730 and a.ktuxesqn < 0
       and a.ktuxeusn = b.segment_id;
 
Then drop the undo segments or the undo tablespace from the output above.
 
With this fix in place an error ORA-1558 is eventually produced for the affected undo segment
which still requires dropping the undo segment:
  ORA-1558 "out of transaction ID's in rollback segment %s"
   Cause: All the available transaction id's have been used
   Action: Shutdown the instance and restart using other rollback segment(s),
                then drop the rollback segment that has no more transaction id's.
 
Workaround
 Once the ORA-600 [4187] is produced, drop the affected undo segment or undo tablespace.

由于本次故障是在system的rollback回滚段上,无法删除该回滚段.所以处理起来比较棘手.

rm -rf误删Oracle数据库恢复

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联系：手机/微信(+86 17813235971) QQ(107644445)QQ咨询惜分飞

标题：rm -rf误删Oracle数据库恢复

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

有客户把虚拟化环境中装有oracle数据库的linux操作系统,由于操作失误在/下面执行了rm -rf *，导致所有文件被删除,系统无法启动.客户希望要求恢复出其中的Oracle数据库.由于是虚拟化环境,然后客户直接从虚拟化平台下载下来磁盘文件,通过工具加载和分析确认是一个xfs的文件系统
20240516190746

使用工具进一步扫描分析,找到部分数据文件
20240516190505
这里可以获取到两个信息:
1. 尝试恢复oracle的control01.ctl文件,然后通过该文件尝试分析其他数据文件位置,运气不错该文件恢复出来是好的,直接加载到新库查询v$datafile,分析出来所有数据文件信息
2. 这里有一个非常不幸的信息,oracle最核心的system01.dbf文件大小明显异常,进一步分析该文件信息,结论是该文件无法通过反删除方式进行恢复
20240515223607
先把可以os层面可以恢复的数据恢复出来,并且检查坏块情况
20240516191836
对于异常的system文件,有两个处理方法:
1. 通过阅览被删除的文件，发现客户有5月14日1点左右的rman备份,通过恢复软件中完整度提示,大概率应该没有什么问题,但是分析发现部分归档日志损坏无法完整恢复
2. 通过对磁盘做碎片,恢复出来该数据文件,参考以往文章:
dbca删除库和rm删库恢复
Oracle 数据文件大小为0kb或者文件丢失恢复
通过这个方法运气不错,恢复出来该库的system01.dbf文件非常完整0丢失

[oracle@localhost oradata]$ dbv file=system01.dbf

DBVERIFY: Release 19.0.0.0.0 - Production on Thu May 15 23:26:57 2024

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

DBVERIFY - Verification starting : FILE = /u01/oradata/system01.dbf


DBVERIFY - Verification complete

Total Pages Examined         : 199680
Total Pages Processed (Data) : 113988
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 26869
Total Pages Failing   (Index): 0
Total Pages Processed (Other): 40253
Total Pages Processed (Seg)  : 1
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 18570
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 658228557 (0.658228557)

完成上述恢复工作之后,目前确认只有sysaux01.dbf有8026个block损坏,但是该表空间不涉及业务数据,尝试在新的系统中直接修改路径并open库

SQL> recover database;
ORA-00283: recovery session canceled due to errors
ORA-38760: This database instance failed to turn on flashback database


SQL> alter database flashback off;

Database altered.

SQL> recover database;
Media recovery complete.
SQL> alter database open;

Database altered.

运气不错,数据库直接open成功,现在处理sysaux01.dbf中的损坏文件:
1. 确认该文件具体坏块开始位置:
20240516193650

2. 由于坏块在文件中比较靠后,分析实际存储数据最后的位置

SQL> select max(block_id+blocks) from dba_extents where file_id=3;

MAX(BLOCK_ID+BLOCKS)
--------------------
             3493120

最后存储数据的位置小于坏块的位置,证明坏块部分是没有存储数据的,直接resize掉坏块部分

SQL> alter database datafile '/u01/oradata/sysaux01.dbf' resize 27290m;

Database altered.

然后dbv该数据文件,确认没有任何问题

[oracle@localhost trace]$ dbv file=/u01/oradata/sysaux01.dbf

DBVERIFY: Release 19.0.0.0.0 - Production on Wed May 15 22:43:00 2024

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

DBVERIFY - Verification starting : FILE = /u01/oradata/sysaux01.dbf


DBVERIFY - Verification complete

Total Pages Examined         : 3493120
Total Pages Processed (Data) : 1516833
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 1868832
Total Pages Failing   (Index): 0
Total Pages Processed (Lob)  : 56577
Total Pages Failing   (Lob)  : 0
Total Pages Processed (Other): 32107
Total Pages Processed (Seg)  : 0
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 18771
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 658223915 (0.658223915)

使用rman检测全库,也确定没有任何问题

[oracle@localhost trace]$ rman target /

Recovery Manager: Release 19.0.0.0.0 - Production on Wed May 15 22:43:58 2024
Version 19.15.0.0.0

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

connected to target database: XIFENFEI (DBID=2912535091)

RMAN> 

RMAN> 

RMAN> backup validate check logical database skip inaccessible;

Starting backup at 15-MAY-24
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=43 device type=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: SID=278 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
………………
File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
32   OK     0              6273         6400            370625094 
  File Name: /u01/oradata/xff_com.dbf
  Block Type Blocks Failing Blocks Processed
  ---------- -------------- ----------------
  Data       0              0               
  Index      0              0               
  Other      0              127             

File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
33   OK     0              163752       832000          627920639 
  File Name: /u01/oradata/XFF_DATA_202312231.dbf
  Block Type Blocks Failing Blocks Processed
  ---------- -------------- ----------------
  Data       0              374296          
  Index      0              285002          
  Other      0              8950            

Finished backup at 15-MAY-24

[oracle@localhost trace]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Wed May 15 22:47:44 2024
Version 19.15.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.15.0.0.0

SQL> select * from v$database_block_corruption ;

no rows selected

SQL>

至此对于这次rm -rf /*的故障实现了Oracle数据库完美恢复,数据0丢失.