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免费做淘宝客网站,电子商务平台建设,免费排版网站,苏州网站建设书生商友达梦备份与恢复 基础环境 操作系统:Red Hat Enterprise Linux Server release 7.9 (Maipo) 数据库版本:DM Database Server 64 V8 架构:单实例1 设置bak_path路径 --创建备份文件存放目录 su - dmdba mkdir -p /dm8/backup--修改dm.ini 文件…

达梦备份与恢复

基础环境
操作系统:Red Hat Enterprise Linux Server release 7.9 (Maipo)
数据库版本:DM Database Server 64 V8
架构:单实例

1 设置bak_path路径

--创建备份文件存放目录
su - dmdba
mkdir -p /dm8/backup--修改dm.ini 文件
BAK_PATH                        = /dm8/backup                      #backup file path[dmdba@test1 dm8]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.937(ms)
disql V8
SQL> select name,value,sys_value,file_value from v$parameter where name='BAK_PATH';行号     NAME     VALUE              SYS_VALUE          FILE_VALUE 
---------- -------- ------------------ ------------------ -----------
1          BAK_PATH /dm8/data/PROD/bak /dm8/data/PROD/bak /dm8/backup已用时间: 4.748(毫秒). 执行号:1000.
SQL> exit--重启实例
[root@test1 arch]# systemctl restart DmServiceTEST.service [dmdba@test1 dm8]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.611(ms)
disql V8
SQL> select name,value,sys_value,file_value from v$parameter where name='BAK_PATH';行号     NAME     VALUE       SYS_VALUE   FILE_VALUE 
---------- -------- ----------- ----------- -----------
1          BAK_PATH /dm8/backup /dm8/backup /dm8/backup已用时间: 5.328(毫秒). 执行号:500.
SQL>

2 全库备份

2.1 文本方式

[dmdba@test1 ~]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.724(ms)
disql V8
SQL> backup database full to "20230729_bak" backupset '20230729_bak';
操作已执行
已用时间: 00:00:03.084. 执行号:600.
SQL> select backup_name,backup_path from v$backupset;行号     BACKUP_NAME  BACKUP_PATH             
---------- ------------ ------------------------
1          20230729_bak /dm8/backup/20230729_bak已用时间: 16.554(毫秒). 执行号:601.

2.2 图形界面

[dmdba@test1 ~]$ manager

在这里插入图片描述在这里插入图片描述在这里插入图片描述

3 数据文件恢复

3.1 模拟报错

模拟报错
2023-07-28 19:04:38.204 [INFO] database P0000074443 T0000000000000074443  hlog_sys_destroy, n_logs[1], adjust_sta[0]
2023-07-28 19:04:38.206 [INFO] database P0000074443 T0000000000000074443  file lsn: 43705
2023-07-28 19:04:38.206 [INFO] database P0000074443 T0000000000000074443  ndct_load_ex_idcls_map load 0 ex_idcls.
2023-07-28 19:04:38.207 [INFO] database P0000074443 T0000000000000074443  ndct db load finished
2023-07-28 19:04:38.211 [ERROR] database P0000074443 T0000000000000074443  os_file_open_low_real error! desc: No such file or directory, path: /dm8/data/PROD/TBS01.dbf, code: 2
2023-07-28 19:04:38.211 [ERROR] database P0000074443 T0000000000000074443  os_file_open_low_real error! desc: No such file or directory, path: /dm8/data/PROD/TBS01.dbf, code: 2
2023-07-28 19:04:38.211 [INFO] database P0000074443 T0000000000000074443  ndct second level fill fast pool finished
2023-07-28 19:04:38.211 [INFO] database P0000074443 T0000000000000074443  ndct third level fill fast pool finished
2023-07-28 19:04:38.227 [INFO] database P0000074443 T0000000000000074443  ndct second level fill fast pool finished
2023-07-28 19:04:38.227 [INFO] database P0000074443 T0000000000000074443  ndct third level fill fast pool finished
2023-07-28 19:04:38.227 [INFO] database P0000074443 T0000000000000074443  ndct fill fast pool finished
2023-07-28 19:04:38.228 [ERROR] database P0000074443 T0000000000000074443  os_file_open_low_real error! desc: No such file or directory, path: /dm8/data/PROD/TBS01.dbf, code: 2
2023-07-28 19:04:38.228 [ERROR] database P0000074443 T0000000000000074443  os_file_open_low_real error! desc: No such file or directory, path: /dm8/data/PROD/TBS01.dbf, code: 2
2023-07-28 19:04:38.229 [INFO] database P0000074443 T0000000000000074443  sess4 aux tsksys init success
2023-07-28 19:04:38.238 [WARNING] database P0000074443 T0000000000000074443  fail to load libgssapi_krb5.so, libgssapi_krb5.so: cannot open shared object file: No such file or directory
2023-07-28 19:04:38.247 [INFO] database P0000074443 T0000000000000074443  nsvr_startup end.
2023-07-28 19:04:38.349 [INFO] database P0000074443 T0000000000000074443  aud sys init success.
2023-07-28 19:04:38.349 [INFO] database P0000074443 T0000000000000074443  aud rt sys init success.
2023-07-28 19:04:38.350 [INFO] database P0000074443 T0000000000000074443  systables desc init success.
2023-07-28 19:04:38.350 [INFO] database P0000074443 T0000000000000074443  ndct_db_load_info success.
2023-07-28 19:04:38.351 [INFO] database P0000074443 T0000000000000074516  nsvr_lsnr_thread successfully created.
2023-07-28 19:04:38.351 [INFO] database P0000074443 T0000000000000074443  backup control file /dm8/data/PROD/dm.ctl to file /dm8/data/PROD/dm_20230728190438_351399.ctl
2023-07-28 19:04:38.353 [INFO] database P0000074443 T0000000000000074443  backup control file /dm8/data/PROD/dm.ctl to file /dm8/data/PROD/ctl_bak/dm_20230728190438_352275.ctl succeed
2023-07-28 19:04:38.353 [INFO] database P0000074443 T0000000000000074443  local instance name is TEST, mode is NORMAL, status is MOUNT.
2023-07-28 19:04:38.353 [INFO] database P0000074443 T0000000000000074443  SYSTEM IS READY.
2023-07-28 19:04:38.353 [INFO] database P0000074443 T0000000000000074443  set g_dw_stat from UNDEFINED to NONE success, g_dw_recover_stop is 0
2023-07-28 19:04:39.351 [INFO] database P0000074443 T0000000000000074479  iid_set_new_next_trxid_if_necessary, next_trxid: 11035

3.2 恢复

3.2.1 文本方式
--关闭实例
[root@test1 arch]# systemctl stop DmServiceTEST.service --恢复
[dmdba@test1 PROD]$ dmrman
dmrman V8
RMAN> check backupset '/dm8/backup/20230729_bak';
check backupset '/dm8/backup/20230729_bak';
[Percent:100.00%][Speed:0.00M/s][Cost:00:00:00][Remaining:00:00:00]                                 
check backupset successfully.
time used: 136.189(ms)
RMAN> RESTORE DATABASE '/dm8/data/PROD/dm.ini' tablespace "TBS" FROM BACKUPSET '/dm8/backup/20230729_bak' DEVICE TYPE disk;
RESTORE DATABASE '/dm8/data/PROD/dm.ini' tablespace "TBS" FROM BACKUPSET '/dm8/backup/20230729_bak' DEVICE TYPE disk;
Database mode = 0, oguid = 0
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
begin redo pwr log collect, last ckpt lsn: 43705 ...
redo pwr log collect finished
EP[0]'s cur_lsn[43705], file_lsn[43705]
[Percent:100.00%][Speed:0.00M/s][Cost:00:00:02][Remaining:00:00:00]                                 
restore successfully.
time used: 00:00:02.418
RMAN> RECOVER DATABASE '/dm8/data/PROD/dm.ini' TABLESPACE TBS WITH ARCHIVEDIR '/dm8/arch';
RECOVER DATABASE '/dm8/data/PROD/dm.ini' TABLESPACE TBS WITH ARCHIVEDIR '/dm8/arch';
Database mode = 0, oguid = 0
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
begin redo pwr log collect, last ckpt lsn: 43705 ...
redo pwr log collect finished
EP[0]'s cur_lsn[43705], file_lsn[43705]
[Percent:100.00%][Speed:0.00PKG/s][Cost:00:00:00][Remaining:00:00:00]                               
recover successfully.
time used: 428.573(ms)--开启实例
[root@test1 arch]# systemctl start DmServiceTEST.service [dmdba@test1 PROD]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.691(ms)
disql V8
SQL> select status$ from v$instance;行号     STATUS$
---------- -------
1          OPEN已用时间: 1.736(毫秒). 执行号:500.
3.2.2 图形界面
[dmdba@test1 ~]$ console

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[dmdba@test1 PROD]$ DmServiceTEST start
Starting DmServiceTEST:                                    [ OK ]
[dmdba@test1 PROD]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.502(ms)
disql V8
SQL> select status$ from v$instance;行号     STATUS$
---------- -------
1          OPEN已用时间: 9.941(毫秒). 执行号:500.
SQL> select file_name from dba_data_files;行号     FILE_NAME                
---------- -------------------------
1          /dm8/data/PROD/SYSTEM.DBF
2          /dm8/data/PROD/TBS02.dbf
3          /dm8/data/PROD/TBS01.dbf
4          /dm8/data/PROD/MAIN.DBF
5          /dm8/data/PROD/TEMP.DBF
6          /dm8/data/PROD/ROLL.DBF6 rows got已用时间: 18.857(毫秒). 执行号:501.
SQL>

4 数据库全库恢复

4.1 模拟报错

2023-07-31 05:34:41.856 [INFO] database P0000026050 T0000000000000026050  INI parameter DPC_2PC changed, the original value 1, new value 0
2023-07-31 05:34:41.863 [INFO] database P0000026050 T0000000000000026050  version info: develop
2023-07-31 05:34:41.864 [INFO] database P0000026050 T0000000000000026050  os_sema2_create_low, create and inc sema success, key:151595369, sem_id:65539, sem_value:1!
2023-07-31 05:34:41.864 [ERROR] database P0000026050 T0000000000000026050  /dm8/data/PROD/SYSTEM.DBF not exist[dmdba@test1 PROD]$ DmServiceTEST start
Starting DmServiceTEST:                                    [ FAILED ]

4.2 恢复

4.2.1 文本方式
[dmdba@test1 dm8]$ dmrman
dmrman V8
RMAN> check backupset '/dm8/backup/20230801_bak';
check backupset '/dm8/backup/20230801_bak';
[Percent:100.00%][Speed:0.00M/s][Cost:00:00:00][Remaining:00:00:00]                                 
check backupset successfully.
time used: 138.700(ms)
RMAN> RESTORE DATABASE '/dm8/data/PROD/dm.ini' FROM BACKUPSET '/dm8/backup/20230801_bak' DEVICE TYPE disk;
RESTORE DATABASE '/dm8/data/PROD/dm.ini' FROM BACKUPSET '/dm8/backup/20230801_bak' DEVICE TYPE disk;
file dm.key not found, use default license!
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
[Percent:100.00%][Speed:0.00M/s][Cost:00:00:02][Remaining:00:00:00]                                 
restore successfully.
time used: 00:00:02.403
RMAN> RECOVER DATABASE '/dm8/data/PROD/dm.ini' WITH ARCHIVEDIR '/dm8/arch';
RECOVER DATABASE '/dm8/data/PROD/dm.ini' WITH ARCHIVEDIR '/dm8/arch';
Database mode = 0, oguid = 0
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
EP[0]'s cur_lsn[44962], file_lsn[44962]
[Percent:100.00%][Speed:0.00PKG/s][Cost:00:00:00][Remaining:00:00:00]                               
recover successfully!
time used: 410.957(ms)
RMAN> recover database '/dm8/data/PROD/dm.ini' update db_magic;
recover database '/dm8/data/PROD/dm.ini' update db_magic;
Database mode = 0, oguid = 0
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
EP[0]'s cur_lsn[46614], file_lsn[46614]
recover successfully!
time used: 00:00:01.001
RMAN>确认
[dmdba@test1 PROD]$ DmServiceTEST start
Starting DmServiceTEST:                                    [ OK ]
[dmdba@test1 PROD]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.070(ms)
disql V8
SQL> select status$ from v$instance;行号     STATUS$
---------- -------
1          OPEN已用时间: 1.994(毫秒). 执行号:500.
SQL> select file_name from dba_data_files;行号     FILE_NAME                
---------- -------------------------
1          /dm8/data/PROD/SYSTEM.DBF
2          /dm8/data/PROD/TBS02.dbf
3          /dm8/data/PROD/TBS01.dbf
4          /dm8/data/PROD/MAIN.DBF
5          /dm8/data/PROD/TEMP.DBF
6          /dm8/data/PROD/ROLL.DBF6 rows got已用时间: 7.471(毫秒). 执行号:501.
SQL>
4.2.2 图形界面
[dmdba@test1 ~]$ console

在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述在这里插入图片描述

[dmdba@test1 PROD]$ DmServiceTEST start
Starting DmServiceTEST:                                    [ OK ]
[dmdba@test1 PROD]$ disql sysdba/Dameng123@localhost:5237服务器[localhost:5237]:处于普通打开状态
登录使用时间 : 3.766(ms)
disql V8
SQL> select status$ from v$instance;行号     STATUS$
---------- -------
1          OPEN已用时间: 2.323(毫秒). 执行号:500.
SQL> select file_name from dba_data_files;行号     FILE_NAME                
---------- -------------------------
1          /dm8/data/PROD/SYSTEM.DBF
2          /dm8/data/PROD/TBS02.dbf
3          /dm8/data/PROD/TBS01.dbf
4          /dm8/data/PROD/MAIN.DBF
5          /dm8/data/PROD/TEMP.DBF
6          /dm8/data/PROD/ROLL.DBF6 rows got已用时间: 9.022(毫秒). 执行号:501.
SQL>

5 归档日志备份与恢复

5.1 归档日志备份

5.1.1 文本方式
[dmdba@test1 backup]$ disql sysdba/Dameng123@localhost:5239Server[localhost:5239]:mode is normal, state is open
login used time : 2.420(ms)
disql V8
SQL> backup archivelog all not backed up to "ARCH_20230806" backupset 'ARCH_20230806';
executed successfully
used time: 00:00:03.536. Execute id is 900.
SQL> select backup_name,backup_path,object_name from v$backupset;LINEID     BACKUP_NAME   BACKUP_PATH           OBJECT_NAME
---------- ------------- --------------------- -----------
1          DB_BAK        /backup/DB_BAK        PROD
2          ARCH_20230806 /backup/ARCH_20230806 ARCHIVEused time: 17.186(ms). Execute id is 901.
SQL>
5.1.2 图形界面

在这里插入图片描述在这里插入图片描述
在这里插入图片描述
在这里插入图片描述在这里插入图片描述

5.2 恢复

5.2.1 文本方式
[dmdba@test1 arch]$ dmrman
dmrman V8
RMAN> restore archive log from backupset '/backup/ARCH_20230806' TO  archivedir '/dm/arch' overwrite 2;
restore archive log from backupset '/backup/ARCH_20230806' TO archivedir '/dm/arch' overwrite 2;
[Percent:100.00%][Speed:0.00M/s][Cost:00:00:00][Remaining:00:00:00]                                 
restore successfully.
time used: 150.999(ms)
5.2.2 图形界面

[dmdba@test1 tool]$

在这里插入图片描述
在这里插入图片描述
在这里插入图片描述
在这里插入图片描述
在这里插入图片描述

谨记:心存敬畏,行有所止。


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