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Oracle primary DB 到 snapshot DB 第一部分

原创 Oracle 作者：大鲨鱼o0O 时间：2018-01-12 14:52:51 0 删除 编辑

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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;

  16. STATUS
  17. ------------
  18. MOUNTED

  20. 1 row selected.

  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

  34. Database altered.

  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

  44. Database altered.

  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 ;

  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

  57. 4 rows selected.

  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，为主库添加4组standby日志，方便之后的主库互换

  1. 10:24:42 SYS @ slow >startup
  2. ORACLE instance started.

  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;

  13. NAME     DATABASE_ROLE PROTECTION_MODE    OPEN_MODE
  14. --------- ---------------- -------------------- --------------------
  15. SLOW     PRIMARY     MAXIMUM PERFORMANCE    READ WRITE

  17. 1 row selected.

  19. Elapsed: 00:00:00.02
  20. 10:28:35 SYS @ slow >show parameter recover;

  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;

  30. System altered.

  32. Elapsed: 00:00:00.00
  33. 10:37:54 SYS @ slow >alter system set db_recovery_file_dest='/dsk1';

  35. System altered.

  37. Elapsed: 00:00:00.01
  38. 10:38:19 SYS @ slow >select member from v$logfile;

  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

  49. 6 rows selected.

  51. Elapsed: 00:00:00.01
  52. 13:26:06 SYS @ slow >edit
  53. Wrote file afiedt.buf

  55.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  56. 13:27:02 SYS @ slow >r
  57.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  58. Enter value for a: 4
  59. Enter value for b: standby04.log
  60. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  61. new 1: alter database add standby logfile group 4 ('/u01/app/oracle/oradata/slow/standby04.log') size 200m

  63. Database altered.

  65. Elapsed: 00:00:02.73
  66. 13:27:19 SYS @ slow >r
  67.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  68. Enter value for a: 5
  69. Enter value for b: standby05.log
  70. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  71. new 1: alter database add standby logfile group 5 ('/u01/app/oracle/oradata/slow/standby05.log') size 200m

  73. Database altered.

  75. Elapsed: 00:00:03.50
  76. 13:27:44 SYS @ slow >r
  77.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  78. Enter value for a: 6
  79. Enter value for b: standby06.log
  80. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  81. new 1: alter database add standby logfile group 6 ('/u01/app/oracle/oradata/slow/standby06.log') size 200m

  83. Database altered.

  85. Elapsed: 00:00:02.04
  86. 13:28:03 SYS @ slow >r
  87.   1* alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  88. Enter value for a: 7
  89. Enter value for b: standby07.log
  90. old 1: alter database add standby logfile group &a ('/u01/app/oracle/oradata/slow/&b') size 200m
  91. new 1: alter database add standby logfile group 7 ('/u01/app/oracle/oradata/slow/standby07.log') size 200m

  93. Database altered.

  95. Elapsed: 00:00:02.33
  96. 13:28:19 SYS @ slow >select group#,thread#,sequence#,archived,status from v$standby_log;

  98.     GROUP# THREAD# SEQUENCE# ARC STATUS
  99. ---------- ---------- ---------- --- ----------
  100.      4     0     0 YES UNASSIGNED
  101.      5     0     0 YES UNASSIGNED
  102.      6     0     0 YES UNASSIGNED
  103.      7     0     0 YES UNASSIGNED

  105. 4 rows selected.

  107. Elapsed: 00:00:00.00


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