WRH$_LATCH, WRH$_SYSSTAT, WRH$_PARAMETER对象较大

Posted on 2023 年 07 月 31 日 by 惜分飞

标题：WRH$_LATCH, WRH$_SYSSTAT, WRH$_PARAMETER对象较大

通过awrinfo查看发现sysaux中以下对象大小属于top N

**********************************
(3b) Space usage within AWR Components (> 500K)
**********************************

COMPONENT        MB SEGMENT_NAME - % SPACE_USED                                           SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
FIXED         136.0 WRH$_PARAMETER_PK.WRH$_PARAME_1600597976_0                    -  68%  INDEX PARTITION
FIXED         128.0 WRH$_LATCH.WRH$_LATCH_1600597976_0                            -  98%  TABLE PARTITION
FIXED         104.0 WRH$_PARAMETER.WRH$_PARAME_1600597976_0                       -  97%  TABLE PARTITION
FIXED          88.0 WRH$_SYSSTAT_PK.WRH$_SYSSTA_1600597976_0                      -  99%  INDEX PARTITION
FIXED          88.0 WRH$_SYSSTAT.WRH$_SYSSTA_1600597976_0                         -  90%  TABLE PARTITION
FIXED          80.0 WRH$_LATCH_PK.WRH$_LATCH_1600597976_0                         -  99%  INDEX PARTITION

查新mos发现类似文档:WRH$_LATCH, WRH$_SYSSTAT, and WRH$_PARAMETER Consume the Majority of Space within SYSAUX (Doc ID 2099998.1)
对应的bug为：Bug 14084247 – ORA-1555 or ORA-12571 Failed AWR purge can lead to continued SYSAUX space use (Doc ID 14084247.8)
处理操作

SQL> SELECT COUNT(1) HOW_MANY
  2  FROM sys.WRH$_PARAMETER a
  3  WHERE NOT EXISTS
  4  (SELECT 1
  5  FROM sys.wrm$_snapshot
  6  WHERE snap_id = a.snap_id
  7  AND dbid = a.dbid
  8  AND instance_number = a.instance_number
  9  );

  HOW_MANY
----------
   2406788

SQL> DELETE FROM sys.WRH$_LATCH a
  2  WHERE NOT EXISTS
  3  (SELECT 1
  4  FROM sys.wrm$_snapshot b
  5  WHERE b.snap_id = a.snap_id
  6  AND dbid=(SELECT dbid FROM v$database)
  7  AND b.dbid = a.dbid
  8  AND b.instance_number = a.instance_number);

已删除2411808行。

SQL>
SQL> DELETE FROM sys.WRH$_SYSSTAT a
  2  WHERE NOT EXISTS
  3  (SELECT 1
  4  FROM sys.wrm$_snapshot b
  5  WHERE b.snap_id = a.snap_id
  6  AND dbid=(SELECT dbid FROM v$database)
  7  AND b.dbid = a.dbid
  8  AND b.instance_number = a.instance_number);

已删除2747472行。

SQL>
SQL> DELETE FROM sys.WRH$_PARAMETER a
  2  WHERE NOT EXISTS
  3  (SELECT 1
  4  FROM sys.wrm$_snapshot b
  5  WHERE b.snap_id = a.snap_id
  6  AND dbid=(SELECT dbid FROM v$database)
  7  AND b.dbid = a.dbid
  8  AND b.instance_number = a.instance_number);

已删除2406788行。

SQL>
SQL> COMMIT;

提交完成。

SQL> ALTER TABLE WRH$_LATCH ENABLE ROW MOVEMENT;

表已更改。

SQL> ALTER TABLE WRH$_LATCH SHRINK SPACE COMPACT;

表已更改。

SQL> ALTER TABLE WRH$_LATCH SHRINK SPACE;

表已更改。

SQL> ALTER TABLE WRH$_LATCH SHRINK SPACE CASCADE;

表已更改。

SQL>
SQL> ALTER TABLE WRH$_PARAMETER ENABLE ROW MOVEMENT;

表已更改。

SQL> ALTER TABLE WRH$_PARAMETER SHRINK SPACE COMPACT;

表已更改。

SQL> ALTER TABLE WRH$_PARAMETER SHRINK SPACE;

表已更改。

SQL> ALTER TABLE WRH$_PARAMETER SHRINK SPACE CASCADE;

表已更改。

SQL> ALTER TABLE WRH$_SYSSTAT ENABLE ROW MOVEMENT;

表已更改。

SQL> ALTER TABLE WRH$_SYSSTAT SHRINK SPACE COMPACT;

表已更改。

SQL> ALTER TABLE WRH$_SYSSTAT SHRINK SPACE;

表已更改。

SQL> ALTER TABLE WRH$_SYSSTAT SHRINK SPACE CASCADE;

表已更改。

SQL> ALTER TABLE WRH$_SYSSTAT disable ROW MOVEMENT;

表已更改。

SQL> ALTER TABLE WRH$_PARAMETER disable ROW MOVEMENT;

表已更改。

SQL> ALTER TABLE WRH$_LATCH disable ROW MOVEMENT;

表已更改。

再次查看这些TOP对象消失

**********************************
(3b) Space usage within AWR Components (> 500K)
**********************************

COMPONENT        MB SEGMENT_NAME - % SPACE_USED                                           SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
FIXED          56.0 WRH$_SERVICE_STAT_PK.WRH$_SERVIC_1600597976_0                 -  64%  INDEX PARTITION
FIXED          29.0 WRH$_SERVICE_STAT.WRH$_SERVIC_1600597976_0                    -  95%  TABLE PARTITION
FIXED          26.0 WRH$_ROWCACHE_SUMMARY.WRH$_ROWCAC_1600597976_0                -  96%  TABLE PARTITION
FIXED          21.0 WRH$_MVPARAMETER.WRH$_MVPARA_1600597976_0                     -  95%  TABLE PARTITION
FIXED          17.0 WRH$_ROWCACHE_SUMMARY_PK.WRH$_ROWCAC_1600597976_0             -  98%  INDEX PARTITION
FIXED          17.0 WRH$_MVPARAMETER_PK.WRH$_MVPARA_1600597976_0                  -  97%  INDEX PARTITION
FIXED          12.0 WRH$_SYSMETRIC_HISTORY                                        -  45%  TABLE

Oracle 19C 报ORA-704 ORA-01555故障处理

Posted on 2023 年 07 月 30 日 by 惜分飞

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

标题：Oracle 19C 报ORA-704 ORA-01555故障处理

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)

.faust加密勒索数据库恢复

Posted on 2023 年 07 月 25 日 by 惜分飞

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

标题：.faust加密勒索数据库恢复

有客户的win服务器被勒索病毒加密,里面运行有用友系统的Oracle数据库，加密提示为（camry2020@aol.com）：

加密的数据文件类似（.DBF.id[0E564ACA-3493].[camry2020@aol.com].faust）:

通过工具检测发现少量block被加密破坏

对于这种级别的损坏,可以通过我开发的Oracle数据文件勒索加密恢复工具直接重构文件头

然后直接open数据库,并且导出数据,实现数据库非常完美的恢复(这个是目前除直接解密之外最好的恢复效果,没有之一)

对于类似这种被加密的勒索的数据文件,我们可以实现比较好的恢复效果,如果此类的数据库(oracle,mysql,sql server)等被加密,需要专业恢复技术支持，请联系我们:
电话/微信:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
系统安全防护措施建议：
1.多台机器，不要使用相同的账号和口令
2.登录口令要有足够的长度和复杂性，并定期更换登录口令
3.重要资料的共享文件夹应设置访问权限控制，并进行定期备份
4.定期检测系统和软件中的安全漏洞，及时打上补丁。
5.定期到服务器检查是否存在异常。
6.安装安全防护软件，并确保其正常运行。
7.从正规渠道下载安装软件。
8.对不熟悉的软件，如果已经被杀毒软件拦截查杀，不要添加信任继续运行。
9.保存良好的备份习惯，尽量做到每日备份，异地备份。

Assistant: Download Reference for Oracle Database/GI PSU, SPU(CPU), Bundle Patches, Patchsets and Base Releases-202307

Posted on 2023 年 07 月 19 日 by 惜分飞

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

标题：Assistant: Download Reference for Oracle Database/GI PSU, SPU(CPU), Bundle Patches, Patchsets and Base Releases-202307

由于19c之前版本的patch,oracle在标准补丁中,已经不再提供,这里主要列举19c/21c相关主要patch

21.0.0.0 RUs
Description	Database Update	GI Update	Windows Bundle Patch
JUL2023 (21.11.0.0.0)	35428978	35427907	35347974
APR2023 (21.10.0.0.0)	35134934	35132566	35046488
JAN2023 (21.9.0.0.0)	34839741	34838415	34750812
Oct2022 (21.8.0.0.0)	34527084	34526142	34468137
JUL2022 (21.7.0.0.0)	34160444	34155589	34110698
APR2022 (21.6.0.0.0)	33843745	33859395	33829143
JAN2022 (21.5.0.0.0)	33516412	33531909	33589769
OCT2021 (21.4.0.0.0)	33239276	33250101	NA

19.0.0.0 RUs
Description	Database Update	GI Update	Windows Bundle Patch
JUL2023 (19.20.0.0.0)	35320081	35332145	35348034
APR2023 (19.19.0.0.0)	35042068	35037840	35046439
JAN2023 (19.18.0.0.0)	34765931	34762026	34750795
Oct2022 (19.17.0.0.0)	34419443	34416665	34468114
JUL2022 (19.16.0.0.0)	34133642	34130714	34110685
APR2022 (19.15.0.0.0)	33806152	33803476	33829175
JAN2022 (19.14.0.0.0)	33515361	33509923	33575656
OCT2021(19.13.0.0.0)	33192793	33182768	33155330
JUL2021 (19.12.0.0.0)	32904851	32895426	32832237
APR2021 (19.11.0.0.0)	32545013	32545008	32409154
JAN2021 (19.10.0.0.0)	32218454	32226239	32062765
OCT2020 (19.9.0.0.0)	31771877	31750108	31719903
JUL2020 (19.8.0.0.0)	31281355	31305339	31247621
APR2020 (19.7.0.0.0)	30869156	30899722	30901317
JAN2020 (19.6.0.0.0)	30557433	30501910	30445947
OCT2019 (19.5.0.0.0)	30125133	30116789	30151705
JUL2019 (19.4.0.0.0)	29834717	29708769	NA
APR2019 (19.3.0.0.0)	29517242	29517302	NA

19.0.0.0 OJVM
Description	OJVM Update	OJVM + DB Update	OJVM + GI Update
JUL2023 (19.20.0.0.230718)	35354406	35370174	35370167
APR2023 (19.19.0.0.230418)	35050341	35058163	35058172
JAN2023 (19.18.0.0.230117)	34786990	34773489	34773504
OCT2022 (19.17.0.0.221018)	34411846	34449114	34449117
JUL2022 (19.16.0.0.220719)	34086870	34160831	34160854
APR2022 (19.15.0.0.220419)	33808367	33859194	33859214
JAN2022 (19.14.0.0.220118)	33561310	33567270	33567274
OCT2021 (19.13.0.0.211019)	33192694	33248420	33248471
JUL2021 (19.12.0.0.210720)	32876380	32900021	32900083
APR2021 (19.11.0.0.210420)	32399816	32578972	32578973
JAN2021 (19.10.0.0.210119)	32067171	32126828	32126842
OCT2020 (19.9.0.0.201020)	31668882	31720396	31720429
JUL2020 (19.8.0.0.200714)	31219897	31326362	31326369
APR2020 (19.7.0.0.200414)	30805684	30783543	30783556
JAN2020 (19.6.0.0.200114)	30484981	30463595	30463609
OCT2019 (19.5.0.0.191015)	30128191	30133124	30133178
JUL2019 (19.4.0.0.190716)	29774421	29699079	29699097
APR2019 (19.3.0.0.190416)	29548437	29621253	29621299

19.0.0.0 MRPs
Description	DBMRP	GIMRP
19.19.0.0.230718	35573556	35573568
19.18.0.0.230620	35449858	35449877
19.18.0.0.230516	35333818	35333842

19.18.0.0 MRPs
Description	DBMRP	GIMRP
19.18.0.0.230718	35573556	35573568
19.18.0.0.230620	35449858	35449877
19.18.0.0.230516	35333818	35333842

参考:Assistant: Download Reference for Oracle Database/GI Update, Revision, PSU, SPU(CPU), Bundle Patches, Patchsets and Base Releases (Doc ID 2118136.2)