Oracle数据库数据恢复、性能优化

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1#
发表于 2014-4-24 11:36:57 | 查看: 4273| 回复: 3
本帖最后由 vincent 于 2014-4-24 12:34 编辑

11g rac --->11g single

11g rac 11.2.0.4.0 asm
11g single 11.2.0.4.0 system datafile
  1. SQL> select OPEN_MODE,database_role,PROTECTION_MODE,PROTECTION_LEVEL,SWITCHOVER_STATUS from v$database;

  2. OPEN_MODE             DATABASE_ROLE    PROTECTION_MODE           PROTECTION_LEVEL        SWITCHOVER_STATUS
  3. -------------------- ---------------- -------------------- -------------------- --------------------
  4. READ ONLY WITH APPLY PHYSICAL STANDBY MAXIMUM PERFORMANCE  MAXIMUM PERFORMANCE        NOT ALLOWED
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rac
alter system switch logfile;

standby
可以收到归档日志。但是不会应用。

standby alert
  1. Completed: alter database recover managed standby database using current logfile disconnect from session
  2. Thu Apr 24 20:30:43 2014
  3. Archived Log entry 9 added for thread 1 sequence 126 ID 0x9ae64f40 dest 1:
  4. Thu Apr 24 20:30:43 2014
  5. RFS[1]: Selected log 11 for thread 1 sequence 127 dbid -1696192445 branch 845510086
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2#
发表于 2014-4-24 12:42:46
standby
  1. SQL> select process,status,sequence# from v$managed_standby;

  2. PROCESS   STATUS        SEQUENCE#
  3. --------- ------------ ----------
  4. ARCH          CONNECTED                0
  5. ARCH          CONNECTED                0
  6. ARCH          CONNECTED                0
  7. ARCH          CLOSING              126
  8. ARCH          CONNECTED                0
  9. RFS          IDLE                        0
  10. RFS          IDLE                      127
  11. RFS          IDLE                        0
  12. MRP0          WAIT_FOR_LOG               76
复制代码
rac
  1. SQL> select max(sequence#) from v$archived_log where thread#=1
  2. union all
  3. select max(sequence#) from v$archived_log where thread#=2;  2    3

  4. MAX(SEQUENCE#)
  5. --------------
  6.            126
  7.             75
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3#
发表于 2014-4-24 12:57:41
**********************************************************
WARNING: Files may exists in db_recovery_file_dest
that are not known to the database. Use the RMAN command
CATALOG RECOVERY AREA to re-catalog any such files.
If files cannot be cataloged, then manually delete them
using OS command.
One of the following events caused this:
1. A backup controlfile was restored.
2. A standby controlfile was restored.
3. The controlfile was re-created.
4. db_recovery_file_dest had previously been enabled and
   then disabled.
**********************************************************
replication_dependency_tracking turned off (no async multimaster replication found)
Physical standby database opened for read only access.
Completed: ALTER DATABASE OPEN
Thu Apr 24 20:26:34 2014
db_recovery_file_dest_size of 4407 MB is 0.08% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
ARC4: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
Thu Apr 24 20:26:35 2014
Using STANDBY_ARCHIVE_DEST parameter default value as USE_DB_RECOVERY_FILE_DEST
Thu Apr 24 20:26:36 2014
Primary database is in MAXIMUM PERFORMANCE mode
RFS[1]: Assigned to RFS process 14941
RFS[1]: Selected log 12 for thread 1 sequence 126 dbid -1696192445 branch 845510086
Thu Apr 24 20:26:36 2014
RFS[2]: Assigned to RFS process 14943
RFS[2]: Selected log 11 for thread 1 sequence 125 dbid -1696192445 branch 845510086
Archived Log entry 8 added for thread 1 sequence 125 ID 0x9ae64f40 dest 1:
Thu Apr 24 20:28:07 2014
alter database recover managed standby database using current logfile disconnect from session
Attempt to start background Managed Standby Recovery process (standby)
Thu Apr 24 20:28:07 2014
MRP0 started with pid=28, OS id=14949
MRP0: Background Managed Standby Recovery process started (standby)
started logmerger process
Thu Apr 24 20:28:13 2014
Managed Standby Recovery starting Real Time Apply
Parallel Media Recovery started with 4 slaves
Waiting for all non-current ORLs to be archived...
All non-current ORLs have been archived.
Media Recovery Waiting for thread 2 sequence 76
Completed: alter database recover managed standby database using current logfile disconnect from session
Thu Apr 24 20:30:43 2014
Archived Log entry 9 added for thread 1 sequence 126 ID 0x9ae64f40 dest 1:
Thu Apr 24 20:30:43 2014
RFS[1]: Selected log 11 for thread 1 sequence 127 dbid -1696192445 branch 845510086

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4#
发表于 2014-4-30 23:40:26
v$archive_dest_status视图是怎么显示的

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