A LITTLE EFFORT EVERY DAY.YOU WILL MAKE A BIG DIFFERENCE.

一、修改数据库属性

EDIT DATABASE 'South_Sales' SET PROPERTY 'LogArchiveFormat'='log_%t_%s_%r_%d.arc';

二、操作步骤

2.1查看DG状态

dgmgrl /

DGMGRL> show configuration;

Configuration - dg_config

  Protection Mode: MaxAvailability

  Members:

  orcl   - Primary database

    orcldg - Physical standby database 

Fast-Start Failover: DISABLED

Configuration Status:

SUCCESS   (status updated 55 seconds ago)

2.2查看DG属性

DGMGRL> show database verbose orcldg;

Database - orcldg

  Role:               PHYSICAL STANDBY

  Intended State:     APPLY-ON

  Transport Lag:      0 seconds (computed 1 second ago)

  Apply Lag:          0 seconds (computed 1 second ago)

  Average Apply Rate: 24.00 KByte/s

  Active Apply Rate:  0 Byte/s

  Maximum Apply Rate: 0 Byte/s

  Real Time Query:    ON

  Instance(s):

    orcldg

  Properties:

    DGConnectIdentifier             = 'orcldg'

    ObserverConnectIdentifier       = ''

    LogXptMode                      = 'sync'

    RedoRoutes                      = ''

    DelayMins                       = '0'

    Binding                         = 'optional'

    MaxFailure                      = '0'

    MaxConnections                  = '1'

    ReopenSecs                      = '300'

    NetTimeout                      = '30'

    RedoCompression                 = 'DISABLE'

    LogShipping                     = 'ON'

    PreferredApplyInstance          = ''

    ApplyInstanceTimeout            = '0'

    ApplyLagThreshold               = '0'

    TransportLagThreshold           = '0'

    TransportDisconnectedThreshold  = '30'

    ApplyParallel                   = 'AUTO'

    StandbyFileManagement           = 'AUTO'

    ArchiveLagTarget                = '0'

    LogArchiveMaxProcesses          = '4'

    LogArchiveMinSucceedDest        = '1'

    DbFileNameConvert               = ''

    LogFileNameConvert              = ''

    FastStartFailoverTarget         = ''

    InconsistentProperties          = '(monitor)'

    InconsistentLogXptProps         = '(monitor)'

    SendQEntries                    = '(monitor)'

    LogXptStatus                    = '(monitor)'

    RecvQEntries                    = '(monitor)'

    StaticConnectIdentifier         = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=roidb02)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=orcldg_DGMGRL)(INSTANCE_NAME=orcldg)(SERVER=DEDICATED)))'

    StandbyArchiveLocation          = '+DATADG/arch'

    AlternateLocation               = ''

    LogArchiveTrace                 = '0'

    LogArchiveFormat                = '%t_%s_%r.dbf'

    TopWaitEvents                   = '(monitor)'

Database Status:

SUCCESS

2.3查看归档日志格式

SQL> show parameter log_archive_format;

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

log_archive_format                   string      %t_%s_%r.dbf

SQL> 

2.4使用DGMGRL修改数据库属性

DGMGRL> EDIT DATABASE 'orcldg' SET PROPERTY 'LogArchiveFormat'='log_%t_%s_%r_%d.arc';

Warning: ORA-16675: database instance restart required for property value modification to take effect

Property "LogArchiveFormat" updated

DGMGRL> 

DGMGRL> EDIT DATABASE 'orcl' SET PROPERTY 'LogArchiveFormat'='log_%t_%s_%r_%d.arc';

Warning: ORA-16675: database instance restart required for property value modification to take effect

Property "LogArchiveFormat" updated

DGMGRL> 

2.5查看是否生效

SQL> show parameter log_archive_format;

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

log_archive_format                   string      %t_%s_%r.dbf

SQL> 

2.6数据库重启

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> 

SQL> 

SQL> 

SQL> startup

ORACLE instance started.

Total System Global Area 1241513984 bytes

Fixed Size                  2923872 bytes

Variable Size             452985504 bytes

Database Buffers          771751936 bytes

Redo Buffers               13852672 bytes

Database mounted.

Database opened.

SQL> 

2.7查看是否生效

ASMCMD [+datadg/arch] > ls

1_12_954623021.dbf

....省略.........

1_61_954623021.dbf

log_1_62_954623021_585bafa7.arc   --格式发生变化

log_1_63_954623021_585bafa7.arc

log_1_64_954623021_585bafa7.arc

ASMCMD [+datadg/arch] > 

SQL> show parameter log_archive_format;

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

log_archive_format                   string      log_%t_%s_%r_%d.arc