maximum performance 转换 maximum protection

这部分需要添加standby redo log，添加日志相关操作请参照与DG physical DB 转 snapshot DB第一部分，
以下内容摘自physical DB 转 snapshot DB第一部分

在备库设置快速恢复区，大小，路径，创建4组standby redo log

1. [root@sink ~]# su - oracle
   
2. [oracle@sink ~]$ echo $ORACLE_SID
   
3. sink
   
4. [oracle@sink ~]$ export ORACLE_SID=gotime
   
5. [oracle@sink ~]$ echo $ORACLE_SID
   
6. gotime
   
7. [oracle@sink ~]$ !sql
   
8. sqlplus / as sysdba
9. sql*Plus: Release 11.2.0.4.0 Production on Fri Jan 12 10:25:51 2018
10. copyright (c) 1982, 2013, Oracle. All rights reserved.
11. Connected to:
    
12. Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    
13. With the Partitioning, OLAP, Data Mining and Real Application Testing options
14. 10:25:51 SYS @ gotime >select status from v$instance;
    
15. 
    
16. STATUS
    
17. ------------
    
18. MOUNTED
    
19. 
    
20. 1 row selected.
    
21. 
    
22. Elapsed: 00:00:00.01
    
23. 10:26:03 SYS @ gotime >select name,database_role,protection_mode,open_mode from v$database;
24. NAME     DATABASE_ROLE PROTECTION_MODE    OPEN_MODE
    
25. --------- ---------------- -------------------- --------------------
    
26. SLOW     PHYSICAL STANDBY MAXIMUM PERFORMANCE    MOUNTED
27. 1 row selected.
28. Elapsed: 00:00:00.02
    
29. 10:26:54 SYS @ gotime >show parameter recover
30. NAME                 TYPE     VALUE
    
31. ------------------------------------ ----------- ------------------------------
    
32. db_recovery_file_dest         string
    
33. db_recovery_file_dest_size     big integer 0
    
34. db_unrecoverable_scn_tracking     boolean     TRUE
    
35. recovery_parallelism         integer     0
    
36. 10:29:42 SYS @ gotime >recover managed standby database cancel;
    
37. ORA-16136: Managed Standby Recovery not active
38. 10:30:31 SYS @ gotime >alter system set db_recovery_file_dest_size=4g;
39. System altered.
40. Elapsed: 00:00:00.00
41. 10:32:25 SYS @ gotime >edit
    
42. Wrote file afiedt.buf
43.   1* alter system set db_recovery_file_dest='/dsk1'
    
44. 10:32:36 SYS @ gotime >r
    
45.   1* alter system set db_recovery_file_dest='/dsk1'
46. System altered.
47. Elapsed: 00:00:00.00
    
48. 10:32:37 SYS @ gotime >show parameter recover;
49. NAME                 TYPE     VALUE
    
50. ------------------------------------ ----------- ------------------------------
    
51. db_recovery_file_dest         string     /dsk1
    
52. db_recovery_file_dest_size     big integer 4G
    
53. db_unrecoverable_scn_tracking     boolean     TRUE
    
54. recovery_parallelism         integer     0
55. 10:39:51 SYS @ gotime >edit
    
56. Wrote file afiedt.buf
57.   1* alter system set db_recovery_file_dest_size=6g
    
58. 10:40:14 SYS @ gotime >r
    
59.   1* alter system set db_recovery_file_dest_size=6g
60. System altered.
61. Elapsed: 00:00:00.00
    
62. 10:40:15 SYS @ gotime >alter database convert to snapshot standby;
    
63. alter database convert to snapshot standby
    
64. *
    
65. ERROR at line 1:
    
66. ORA-38784: Cannot create restore point 'SNAPSHOT_STANDBY_required_01/12/2018 10:40:26'.
    
67. ORA-38788: More standby database recovery is needed
68. Elapsed: 00:00:00.00
    
69. ----------------意思是提示备库没有创建standby redo log所以下面创建4组-------------------
70. 13:16:50 SYS @ gotime >alter system set db_recovery_file_dest_size=4g;
71. System altered.
72. Elapsed: 00:00:00.01
73. 13:18:31 SYS @ gotime >edit
    
74. Wrote file afiedt.buf
75.   1* select group#,thread#,sequence#,archived,status from v$standby_log
    
76. 13:18:55 SYS @ gotime >r
    
77.   1* select group#,thread#,sequence#,archived,status from v$standby_log
78. no rows selected
79. Elapsed: 00:00:00.00
    
80. 13:18:55 SYS @ gotime >select member from v$logfile;
81. MEMBER
    
82. ------------------------
    
83. /u01/app/oracle/oradata/gotime/redo01a.log
    
84. /u01/app/oracle/oradata/gotime/redo01b.log
    
85. /u01/app/oracle/oradata/gotime/redo02a.log
    
86. /u01/app/oracle/oradata/gotime/redo02b.log
    
87. /u01/app/oracle/oradata/gotime/redo03a.log
    
88. /u01/app/oracle/oradata/gotime/redo03b.log
89. 6 rows selected.
90. Elapsed: 00:00:00.01

 

备库上依据redo log的路径建立4组standby redo log

1. 13:21:44 SYS @ gotime >edit
   
2. Wrote file afiedt.buf
   
3.   1 alter database add standby logfile group 4
   
4.   2* ('/u01/app/oracle/oradata/gotime/&a') size 200m
   
5. 13:22:33 SYS @ gotime >r
   
6.   1 alter database add standby logfile group 4
   
7.   2* ('/u01/app/oracle/oradata/gotime/&a') size 200m
   
8. Enter value for a: standby04.log
   
9. old 2: ('/u01/app/oracle/oradata/gotime/&a') size 200m
   
10. new 2: ('/u01/app/oracle/oradata/gotime/standby04.log') size 200m
    
11. Database altered.
    
12. Elapsed: 00:00:01.74
    
13. 13:23:02 SYS @ gotime >edit
    
14. Wrote file afiedt.buf
    
15.   1* alter database add standby logfile group 4
    
16. 13:23:12 SYS @ gotime >edit
    
17. Wrote file afiedt.buf
    
18.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b') size 200m
    
19. 13:23:58 SYS @ gotime >r
    
20.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b') size 200m
    
21. Enter value for a: 5
    
22. Enter value for b: standby05.log
    
23. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b')size 200m
    
24. new 1: alter database add standby logfile group 5 ('/u01/app/oracle/oradata/gotime/standby05.log') size 200m
    
25. Database altered.
    
26. Elapsed: 00:00:02.02
    
27. 13:24:16 SYS @ gotime >r
    
28.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b') size 200m
    
29. Enter value for a: 6
    
30. Enter value for b: standby06.log
    
31. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b')size 200m
    
32. new 1: alter database add standby logfile group 6 ('/u01/app/oracle/oradata/gotime/standby06.log') size 200m
    
33. 
    
34. Database altered.
    
35. 
    
36. Elapsed: 00:00:01.98
    
37. 13:24:35 SYS @ gotime >r
    
38.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b') size 200m
    
39. Enter value for a: 7
    
40. Enter value for b: standby07.log
    
41. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/gotime/&b')size 200m
    
42. new 1: alter database add standby logfile group 7 ('/u01/app/oracle/oradata/gotime/standby07.log') size 200m
    
43. 
    
44. Database altered.
    
45. 
    
46. Elapsed: 00:00:01.69
    
47. 13:24:50 SYS @ gotime >select group#,thread#,sequence#,archived,status from v$standby_log
    
48. 13:25:15 2 ;
    
49. 
    
50.     GROUP# THREAD# SEQUENCE# ARC STATUS
    
51. ---------- ---------- ---------- --- ----------
    
52.      4 0 0 YES UNASSIGNED
    
53.      5 0 0 YES UNASSIGNED
    
54.      6 0 0 YES UNASSIGNED
    
55.      7 0 0 YES UNASSIGNED
    
56. 
    
57. 4 rows selected.
    
58. 
    
59. Elapsed: 00:00:00.00
    
60. 13:25:16 SYS @ gotime >

打开主库，设置快速恢复区大小，路径，

1. 10:24:42 SYS @ slow >startup
   
2. ORACLE instance started.
   
3. 
   
4. Total System Global Area 521936896 bytes
   
5. Fixed Size         2254824 bytes
   
6. Variable Size         377489432 bytes
   
7. Database Buffers     138412032 bytes
   
8. Redo Buffers         3780608 bytes
   
9. Database mounted.
   
10. Database opened.
    
11. 10:24:57 SYS @ slow >select name,database_role,protection_mode,open_mode from v$database;
    
12. 
    
13. NAME     DATABASE_ROLE PROTECTION_MODE    OPEN_MODE
    
14. --------- ---------------- -------------------- --------------------
    
15. SLOW     PRIMARY     MAXIMUM PERFORMANCE    READ WRITE
    
16. 
    
17. 1 row selected.
    
18. 
    
19. Elapsed: 00:00:00.02
    
20. 10:28:35 SYS @ slow >show parameter recover;
    
21. 
    
22. NAME                 TYPE     VALUE
    
23. ------------------------------------ ----------- ------------------------------
    
24. db_recovery_file_dest         string
    
25. db_recovery_file_dest_size     big integer 0
    
26. db_unrecoverable_scn_tracking     boolean     TRUE
    
27. recovery_parallelism         integer     0
    
28. 10:37:21 SYS @ slow >alter system set db_recovery_file_dest_size=4g;
    
29. 
    
30. System altered.
    
31. 
    
32. Elapsed: 00:00:00.00
    
33. 10:37:54 SYS @ slow >alter system set db_recovery_file_dest='/dsk1';
    
34. 
    
35. System altered.
    
36. 
    
37. Elapsed: 00:00:00.01
    
38. 10:38:19 SYS @ slow >select member from v$logfile;
    
39. 
    
40. MEMBER
    
41. -----------------------------------------
    
42. /u01/app/oracle/oradata/slow/redo01a.log
    
43. /u01/app/oracle/oradata/slow/redo01b.log
    
44. /u01/app/oracle/oradata/slow/redo02a.log
    
45. /u01/app/oracle/oradata/slow/redo02b.log
    
46. /u01/app/oracle/oradata/slow/redo03a.log
    
47. /u01/app/oracle/oradata/slow/redo03b.log
    
48. 
    
49. 6 rows selected.
    
50. 
    
51. Elapsed: 00:00:00.01

主库上依据redo log的路径建立4组standby redo log

1. 13:26:06 SYS @ slow >edit
   
2. Wrote file afiedt.buf
   
3. 
   
4.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
   
5. 13:27:02 SYS @ slow >r
   
6.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
   
7. Enter value for a: 4
   
8. Enter value for b: standby04.log
   
9. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size200m
   
10. new 1: alter database add standby logfile group 4 ('/u01/app/oracle/oradata/slow/standby04.log') size 200m
    
11. 
    
12. Database altered.
    
13. 
    
14. Elapsed: 00:00:02.73
    
15. 13:27:19 SYS @ slow >r
    
16.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
    
17. Enter value for a: 5 
    
18. Enter value for b: standby05.log
    
19. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size200m
    
20. new 1: alter database add standby logfile group 5 ('/u01/app/oracle/oradata/slow/standby05.log') size 200m
    
21. 
    
22. Database altered.
    
23. 
    
24. Elapsed: 00:00:03.50
    
25. 13:27:44 SYS @ slow >r
    
26.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
    
27. Enter value for a: 6
    
28. Enter value for b: standby06.log
    
29. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size200m
    
30. new 1: alter database add standby logfile group 6 ('/u01/app/oracle/oradata/slow/standby06.log') size 200m
    
31. 
    
32. Database altered.
    
33. 
    
34. Elapsed: 00:00:02.04
    
35. 13:28:03 SYS @ slow >r
    
36.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
    
37. Enter value for a: 7 
    
38. Enter value for b: standby07.log
    
39. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size200m
    
40. new 1: alter database add standby logfile group 7 ('/u01/app/oracle/oradata/slow/standby07.log') size 200m
    
41. 
    
42. Database altered.
    
43. 
    
44. Elapsed: 00:00:02.33
    
45. 13:28:19 SYS @ slow >select group#,thread#,sequence#,archived,status from v$standby_log;
    
46. 
    
47.     GROUP# THREAD# SEQUENCE# ARC STATUS
    
48. ---------- ---------- ---------- --- ----------
    
49.      4     0     0 YES UNASSIGNED
    
50.      5     0     0 YES UNASSIGNED
    
51.      6     0     0 YES UNASSIGNED
    
52.      7     0     0 YES UNASSIGNED
    
53. 
    
54. 4 rows selected.
    
55. 
    
56. Elapsed: 00:00:00.00

主库修改传输方式sync affirm ，下面备库也将跟着修改

1. 13:55:51 SYS @ slow >r
   
2.   1* alter system set log_archive_dest_2='SERVICE=gotime OPTIONAL LGWR SYNC AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=gotime' scope=spfile
   
3. 
   
4. System altered.
   
5. 
   
6. Elapsed: 00:00:00.00

备库没有设置spfile，是以pfile打开库的，所以创建spifle，以spfile打开，才能修改

1. 13:57:43 SYS @ gotime >edit
   
2. Wrote file afiedt.buf
   
3. 
   
4.   1* alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile
   
5. 13:58:01 SYS @ gotime >r
   
6.   1* alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile
   
7. alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile
   
8. *
   
9. ERROR at line 1:
   
10. ORA-32001: write to SPFILE requested but no SPFILE is in use
    
11. 
    
12. 
    
13. Elapsed: 00:00:00.00
    
14. 13:58:02 SYS @ gotime >create pfile from spfile;
    
15. create pfile from spfile
    
16. *
    
17. ERROR at line 1:
    
18. ORA-01565: error in identifying file '?/dbs/spfile@.ora'
    
19. ORA-27037: unable to obtain file status
    
20. Linux-x86_64 Error: 2: No such file or directory
    
21. Additional information: 3
    
22. 
    
23. 
    
24. Elapsed: 00:00:00.00
    
25. 13:59:06 SYS @ gotime >create spfile from pfile;
    
26. 
    
27. File created.
    
28. 
    
29. Elapsed: 00:00:00.02
    
30. 14:00:45 SYS @ gotime >alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile;
    
31. alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile
    
32. *
    
33. ERROR at line 1:
    
34. ORA-32001: write to SPFILE requested but no SPFILE is in use
    
35. 
    
36. 
    
37. Elapsed: 00:00:00.00
    
38. 14:01:06 SYS @ gotime >shutdown immediate;
    
39. ORA-01109: database not open
    
40. 
    
41. 
    
42. Database dismounted.
    
43. ORACLE instance shut down.
    
44. 14:01:37 SYS @ gotime >startup mount;
    
45. ORACLE instance started.
    
46. 
    
47. Total System Global Area 521936896 bytes
    
48. Fixed Size         2254824 bytes
    
49. Variable Size         377489432 bytes
    
50. Database Buffers     138412032 bytes
    
51. Redo Buffers         3780608 bytes
    
52. Database mounted.
    
53. 14:01:57 SYS @ gotime >alter system set log_archive_dest_2='SERVICE=slow optional sync AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=slow' scope=spfile;
    
54. 
    
55. System altered.
    
56. 
    
57. Elapsed: 00:00:00.01
    
58. 14:02:09 SYS @ gotime >

主库开始转换，成功的从maximum performance 到 maximum protection模式

1. 13:55:52 SYS @ slow >startup mount force;
   
2. ORACLE instance started.
   
3. 
   
4. Total System Global Area 521936896 bytes
   
5. Fixed Size         2254824 bytes
   
6. Variable Size         377489432 bytes
   
7. Database Buffers     138412032 bytes
   
8. Redo Buffers         3780608 bytes
   
9. Database mounted.
   
10. 14:09:15 SYS @ slow >select status from v$instance;
    
11. 
    
12. STATUS
    
13. ------------
    
14. MOUNTED
    
15. 
    
16. 1 row selected.
    
17. 
    
18. Elapsed: 00:00:00.01
    
19. 14:09:29 SYS @ slow >select name,database_role,protection_mode from v$database;
    
20. 
    
21. NAME     DATABASE_ROLE PROTECTION_MODE
    
22. --------- ---------------- --------------------
    
23. SLOW     PRIMARY     MAXIMUM PERFORMANCE
    
24. 
    
25. 1 row selected.
    
26. 
    
27. Elapsed: 00:00:00.01
    
28. 14:10:02 SYS @ slow >alter database set standby database to maximize protection;
    
29. 
    
30. Database altered.
    
31. 
    
32. Elapsed: 00:00:00.01
    
33. 14:10:52 SYS @ slow >alter database open;
    
34. 
    
35. Database altered.
    
36. 
    
37. Elapsed: 00:00:03.83
    
38. 14:11:20 SYS @ slow >select name,database_role,protection_mode from v$database;
    
39. 
    
40. NAME     DATABASE_ROLE PROTECTION_MODE
    
41. --------- ---------------- --------------------
    
42. SLOW     PRIMARY     MAXIMUM PROTECTION
    
43. 
    
44. 1 row selected.
    
45. 
    
46. Elapsed: 00:00:00.00
    
47. 14:11:45 SYS @ slow >

主库转换成功之后，备库的状态也随着改变了

1. 14:14:09 SYS @ gotime >select status from v$instance;
   
2. 
   
3. STATUS
   
4. ------------
   
5. MOUNTED
   
6. 
   
7. 1 row selected.
   
8. 
   
9. Elapsed: 00:00:00.01
   
10. 14:14:38 SYS @ gotime >select name,database_role,protection_mode from v$database;
    
11. 
    
12. NAME     DATABASE_ROLE PROTECTION_MODE
    
13. --------- ---------------- --------------------
    
14. SLOW     PHYSICAL STANDBY MAXIMUM PROTECTION
    
15. 
    
16. 1 row selected.
    
17. 
    
18. Elapsed: 00:00:00.00
    
19. 14:15:03 SYS @ gotime >alter database open;
    
20. 
    
21. Database altered.
    
22. 
    
23. Elapsed: 00:00:00.41
    
24. 14:15:10 SYS @ gotime >select name,database_role,protection_mode from v$database;
    
25. 
    
26. NAME     DATABASE_ROLE PROTECTION_MODE
    
27. --------- ---------------- --------------------
    
28. SLOW     PHYSICAL STANDBY MAXIMUM PROTECTION
    
29. 
    
30. 1 row selected.
    
31. 
    
32. Elapsed: 00:00:00.01

主库做一些DML操作，但是最后一步没有提交

1. 14:18:31 SYS @ slow >select * from t2017;
   
2. 
   
3.     DEPTNO DNAME     LOC
   
4. ---------- -------------- -------------
   
5.     10 ACCOUNTING     NEW YORK
   
6.     20 RESEARCH     DALLAS
   
7.     30 SALES     CHICAGO
   
8.     40 OPERATIONS     BOSTON
   
9. 
   
10. 4 rows selected.
    
11. 
    
12. Elapsed: 00:00:00.00
    
13. 14:18:46 SYS @ slow >insert into t2017 select * from t2017;
    
14. 
    
15. 4 rows created.
    
16. 
    
17. Elapsed: 00:00:00.00
    
18. 14:19:29 SYS @ slow >select * from t2017;
    
19. 
    
20.     DEPTNO DNAME     LOC
    
21. ---------- -------------- -------------
    
22.     10 ACCOUNTING     NEW YORK
    
23.     20 RESEARCH     DALLAS
    
24.     30 SALES     CHICAGO
    
25.     40 OPERATIONS     BOSTON
    
26.     10 ACCOUNTING     NEW YORK
    
27.     20 RESEARCH     DALLAS
    
28.     30 SALES     CHICAGO
    
29.     40 OPERATIONS     BOSTON
    
30. 
    
31. 8 rows selected.
    
32. 
    
33. Elapsed: 00:00:00.00
    
34. 14:19:43 SYS @ slow >commit;
    
35. 
    
36. Commit complete.
    
37. 
    
38. Elapsed: 00:00:00.00
    
39. 14:19:45 SYS @ slow >insert into t2017 select * from t2017;
    
40. 
    
41. 8 rows created.
    
42. 
    
43. Elapsed: 00:00:00.00
    
44. 14:20:42 SYS @ slow >select * from t2017;
    
45. 
    
46.     DEPTNO DNAME     LOC
    
47. ---------- -------------- -------------
    
48.     10 ACCOUNTING     NEW YORK
    
49.     20 RESEARCH     DALLAS
    
50.     30 SALES     CHICAGO
    
51.     40 OPERATIONS     BOSTON
    
52.     10 ACCOUNTING     NEW YORK
    
53.     20 RESEARCH     DALLAS
    
54.     30 SALES     CHICAGO
    
55.     40 OPERATIONS     BOSTON
    
56.     10 ACCOUNTING     NEW YORK
    
57.     20 RESEARCH     DALLAS
    
58.     30 SALES     CHICAGO
    
59. 
    
60.     DEPTNO DNAME     LOC
    
61. ---------- -------------- -------------
    
62.     40 OPERATIONS     BOSTON
    
63.     10 ACCOUNTING     NEW YORK
    
64.     20 RESEARCH     DALLAS
    
65.     30 SALES     CHICAGO
    
66.     40 OPERATIONS     BOSTON
    
67. 
    
68. 16 rows selected.
    
69. 
    
70. Elapsed: 00:00:00.00
    
71. 14:21:18 SYS @ slow >alter system switch logfile;
    
72. 
    
73. System altered.
    
74. 
    
75. Elapsed: 00:00:00.12
    
76. 14:23:28 SYS @ slow >

备库重新mount并应用日志（media recover）查询信息，查不到最后没有提交的信息，正常！

1. 14:23:38 SYS @ gotime >startup mount force;
   
2. ORACLE instance started.
   
3. 
   
4. Total System Global Area 521936896 bytes
   
5. Fixed Size         2254824 bytes
   
6. Variable Size         377489432 bytes
   
7. Database Buffers     138412032 bytes
   
8. Redo Buffers         3780608 bytes
   
9. Database mounted.
   
10. 14:24:22 SYS @ gotime >recover managed standby database disconnect;
    
11. Media recovery complete.
    
12. 14:24:51 SYS @ gotime >select * from t2017;
    
13. select * from t2017
    
14.               *
    
15. ERROR at line 1:
    
16. ORA-01219: database not open: queries allowed on fixed tables/views only
    
17. 
    
18. 
    
19. Elapsed: 00:00:00.00
    
20. 14:25:07 SYS @ gotime >alter database open;
    
21. alter database open
    
22. *
    
23. ERROR at line 1:
    
24. ORA-10456: cannot open standby database; media recovery session may be in progress
    
25. 
    
26. 
    
27. Elapsed: 00:00:00.00
    
28. 14:25:18 SYS @ gotime >recover managed standby database cancel;
    
29. Media recovery complete.
    
30. 14:25:42 SYS @ gotime >alter database open;
    
31. 
    
32. Database altered.
    
33. 
    
34. Elapsed: 00:00:00.21
    
35. 14:25:47 SYS @ gotime >select * from t2017;
    
36. 
    
37.     DEPTNO DNAME     LOC
    
38. ---------- -------------- -------------
    
39.     10 ACCOUNTING     NEW YORK
    
40.     20 RESEARCH     DALLAS
    
41.     30 SALES     CHICAGO
    
42.     40 OPERATIONS     BOSTON
    
43.     10 ACCOUNTING     NEW YORK
    
44.     20 RESEARCH     DALLAS
    
45.     30 SALES     CHICAGO
    
46.     40 OPERATIONS     BOSTON
    
47. 
    
48. 8 rows selected.
    
49. 
    
50. Elapsed: 00:00:00.01
    
51. 14:25:57 SYS @ gotime >

这个时候我们把备库的网络切断，然后再备库提交试试看...

1. [root@sink ~]# ifconfig
   
2. eth0 Link encap:Ethernet HWaddr 08:00:27:03:A5:94
   
3.           inet addr:192.168.10.6 Bcast:192.168.10.255 Mask:255.255.255.0
   
4.           UP broADCAST RUNNING MULTICAST MTU:1500 Metric:1
   
5.           RX packets:29770 errors:0 dropped:0 overruns:0 frame:0
   
6.           TX packets:13633 errors:0 dropped:0 overruns:0 carrier:0
   
7.           collisions:0 txqueuelen:1000
   
8.           RX bytes:32088544 (30.6 MiB) TX bytes:1186858 (1.1 MiB)
   
9. 
   
10. lo Link encap:Local Loopback
    
11.           inet addr:127.0.0.1 Mask:255.0.0.0
    
12.           UP LOOPBACK RUNNING MTU:16436 Metric:1
    
13.           RX packets:4899 errors:0 dropped:0 overruns:0 frame:0
    
14.           TX packets:4899 errors:0 dropped:0 overruns:0 carrier:0
    
15.           collisions:0 txqueuelen:0
    
16.           RX bytes:3552488 (3.3 MiB) TX bytes:3552488 (3.3 MiB)
    
17. 
    
18. [root@sink ~]# ifconfig eth0 down
    
19. 
    
20. Connection closed by foreign host.
    
21. 
    
22. disconnected from remote host(sink_root) at 14:26:42.
    
23. 
    
24. Type `help

主库探知备库down，大约5~6分钟之后主库自己也选择自杀了（shutdown abort）

1. 14:26:28 SYS @ slow >commit;
   
2. commit
   
3. *
   
4. ERROR at line 1:
   
5. ORA-03113: end-of-file on communication channel
   
6. Process ID: 4226
   
7. Session ID: 1 Serial number: 5
   
8. 
   
9. 
   
10. Elapsed: 00:05:22.15
    
11. 14:31:54 SYS @ slow >select status from v$instance;
    
12. ERROR:
    
13. ORA-03114: not connected to ORACLE
    
14. 
    
15. 
    
16. Elapsed: 00:00:00.00
    
17. 14:34:54 SYS @ slow >

主库最后的告警日志信息

1. ***********************************************************************
   
2. 
   
3. Fatal NI connect error 12543, connecting to:
   
4.  (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=sink)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=gotime)(CID=(PROGRAM=oracle)(HOST=slow)(USER=oracle))))
   
5. 
   
6.   VERSION informatION:
   
7.     TNS for Linux: Version 11.2.0.4.0 - Production
   
8.     TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.4.0 - Production
   
9.   Time: 13-JAN-2018 14:31:54
   
10.   Tracing not turned on.
    
11.   Tns error struct:
    
12.     ns main err code: 12543
    
13.     
    
14. TNS-12543: TNS:destination host unreachable
    
15.     ns secondary err code: 12560
    
16.     nt main err code: 513
    
17.     
    
18. TNS-00513: Destination host unreachable
    
19.     nt secondary err code: 113
    
20.     nt OS err code: 0
    
21. Error 12543 received logging on to the standby
    
22. Sat Jan 13 14:31:54 2018
    
23. LGWR: Error 12543 attaching to RFS for reconnect
    
24. Error 16198 for archive log file 3 to 'gotime'
    
25. Destination LOG_ARCHIVE_DEST_2 is UNSYNCHRONIZED
    
26. LGWR: All standby destinations have Failed
    
27. ******************************************************
    
28. WARNING: All standby database destinations have Failed
    
29. WARNING: Instance shutdown required to protect primary
    
30. ******************************************************
    
31. LGWR (ospid: 4180): terminating the instance due to error 16098
    
32. Sat Jan 13 14:31:54 2018
    
33. System state dump requested by (instance=1, osid=4180 (LGWR)), summary=[abnormal instance termination].
    
34. System State dumped to trace file /u01/app/oracle/diag/rdbms/slow/slow/trace/slow_diag_4160_20180113143154.trc
    
35. Dumping diagnostic data in directory=[cdmp_20180113143154], requested by (instance=1, osid=4180 (LGWR)), summary=[abnormal instance termination].
    
36. Instance terminated by LGWR, pid = 4180

最后我们去备库虚拟机的界面，进入后ifconfig eth0 up

接着通过Xshell连接到备库的虚拟主机，查看状态恢复正常

1. Connecting to 192.168.10.6:22...
   
2. Connection established.
   
3. To escape to local shell, press 'Ctrl+Alt+]'.
   
4. 
   
5. Last login: Sat Jan 13 14:37:06 2018
   
6. [root@sink ~]# su - oracle
   
7. [oracle@sink ~]$ echo $ORACLE_SID
   
8. sink
   
9. [oracle@sink ~]$ export ORACLE_SID=gotime
   
10. [oracle@sink ~]$ echo $ORACLE_SID
    
11. gotime
    
12. [oracle@sink ~]$ !sql
    
13. sqlplus / as sysdba
    
14. 
    
15. sql*Plus: Release 11.2.0.4.0 Production on Sat Jan 13 14:56:19 2018
    
16. 
    
17. copyright (c) 1982, 2013, Oracle. All rights reserved.
    
18. 
    
19. 
    
20. Connected to:
    
21. Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    
22. With the Partitioning, OLAP, Data Mining and Real Application Testing options
    
23. 
    
24. 14:56:19 SYS @ gotime >select status from v$instance;
    
25. 
    
26. STATUS
    
27. ------------
    
28. OPEN
    
29. 
    
30. 1 row selected.
    
31. 
    
32. Elapsed: 00:00:00.01
    
33. 14:56:33 SYS @ gotime >select name,database_role,protection_mode from v$database;
    
34. 
    
35. NAME     DATABASE_ROLE PROTECTION_MODE
    
36. --------- ---------------- --------------------
    
37. SLOW     PHYSICAL STANDBY MAXIMUM PROTECTION
    
38. 
    
39. 1 row selected.
    
40. 
    
41. Elapsed: 00:00:00.00
    
42. 14:57:21 SYS @ gotime >

主库再启动到open，因为是自杀（shutdown abort）所以会比较就一点，好了，一切正常！成功！

1. 14:34:54 SYS @ slow >select status form v$instance;
   
2. ERROR:
   
3. ORA-03114: not connected to ORACLE
   
4. 
   
5. 
   
6. Elapsed: 00:00:00.00
   
7. 14:58:55 SYS @ slow >startup
   
8. ORA-24324: service handle not initialized
   
9. ORA-01041: internal error. hostdef extension doesn't exist
   
10. 14:58:59 SYS @ slow >exit
    
11. disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    
12. With the Partitioning, OLAP, Data Mining and Real Application Testing options
    
13. [oracle@slow ~]$ !sql
    
14. sqlplus '/as sysdba