Setting up the standby side after a crash (Data Guard)
Hi,
I hope this is the right area to publish my problem...
I can't find something like codetags for the system output - so I'm sorry for the bad looking
I have a problem. I use Oracle 11.2.0.3.0 with a dataguard environment. My primary database crashed and I activate the standby to be the new primary.
After the old primary gets repaired I want to define them as the ney standby. This didn't work because we have disabled flashback logging.
We created the new standby:
rman target sys/password@prim auxiliary sys/password@stby
duplicate target database for standby from active database;
After this we do this on the new standby:
alter database recover managed standby database disconnect from session;
It looks the now there is a working physical standby.
Now I look on the primary dataguard:
DGMGRL> show database verbose stby;
Database - stby
Role: PHYSICAL STANDBY
Intended State: APPLY-ON
Transport Lag: (unknown)
Apply Lag: (unknown)
Real Time Query: OFF
Instance(s):
dbuc4
Properties:
DGConnectIdentifier = 'stby'
ObserverConnectIdentifier = ''
LogXptMode = 'ASYNC'
DelayMins = '0'
Binding = 'optional'
MaxFailure = '0'
MaxConnections = '1'
ReopenSecs = '300'
NetTimeout = '30'
RedoCompression = 'DISABLE'
LogShipping = 'ON'
PreferredApplyInstance = ''
ApplyInstanceTimeout = '0'
ApplyParallel = 'AUTO'
StandbyFileManagement = 'AUTO'
ArchiveLagTarget = '900'
LogArchiveMaxProcesses = '4'
LogArchiveMinSucceedDest = '1'
DbFileNameConvert = ''
LogFileNameConvert = ''
FastStartFailoverTarget = ''
InconsistentProperties = '(monitor)'
InconsistentLogXptProps = '(monitor)'
SendQEntries = '(monitor)'
LogXptStatus = '(monitor)'
RecvQEntries = '(monitor)'
SidName = 'dbuc4'
StaticConnectIdentifier = '(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=stby)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=stby_DGMGRL.blubb.de)(INSTANCE_NAME=stby)(SERVER=DEDICATED)))'
StandbyArchiveLocation = 'USE_DB_RECOVERY_FILE_DEST'
AlternateLocation = ''
LogArchiveTrace = '0'
LogArchiveFormat = '%t_%s_%r.arc'
TopWaitEvents = '(monitor)'
Database Status:
ORA-16795: the standby database needs to be re-created
DGMGRL> show database verbose prim;
Database - prim
Role: PRIMARY
Intended State: TRANSPORT-ON
Instance(s):
dbuc4
dbuc4stby
Properties:
DGConnectIdentifier = 'prim'
ObserverConnectIdentifier = ''
LogXptMode = 'ASYNC'
DelayMins = '0'
Binding = 'OPTIONAL'
MaxFailure = '0'
MaxConnections = '1'
ReopenSecs = '300'
NetTimeout = '30'
RedoCompression = 'DISABLE'
LogShipping = 'ON'
PreferredApplyInstance = ''
ApplyInstanceTimeout = '0'
ApplyParallel = 'AUTO'
StandbyFileManagement = 'AUTO'
ArchiveLagTarget = '0'
LogArchiveMaxProcesses = '4'
LogArchiveMinSucceedDest = '1'
DbFileNameConvert = ''
LogFileNameConvert = ''
FastStartFailoverTarget = ''
InconsistentProperties = '(monitor)'
InconsistentLogXptProps = '(monitor)'
SendQEntries = '(monitor)'
LogXptStatus = '(monitor)'
RecvQEntries = '(monitor)'
SidName(*)
StaticConnectIdentifier(*)
StandbyArchiveLocation(*)
AlternateLocation(*)
LogArchiveTrace(*)
LogArchiveFormat(*)
TopWaitEvents(*)
(*) - Please check specific instance for the property value
Database Status:
SUCCESS
DGMGRL> show database verbose dbuc4stby;
Database - dbuc4stby
Role: PRIMARY
Intended State: TRANSPORT-ON
Instance(s):
dbuc4
dbuc4stby
Properties:
DGConnectIdentifier = 'dbuc4stby'
ObserverConnectIdentifier = ''
LogXptMode = 'ASYNC'
DelayMins = '0'
Binding = 'OPTIONAL'
MaxFailure = '0'
MaxConnections = '1'
ReopenSecs = '300'
NetTimeout = '30'
RedoCompression = 'DISABLE'
LogShipping = 'ON'
PreferredApplyInstance = ''
ApplyInstanceTimeout = '0'
ApplyParallel = 'AUTO'
StandbyFileManagement = 'AUTO'
ArchiveLagTarget = '0'
LogArchiveMaxProcesses = '4'
LogArchiveMinSucceedDest = '1'
DbFileNameConvert = ''
LogFileNameConvert = ''
FastStartFailoverTarget = ''
InconsistentProperties = '(monitor)'
InconsistentLogXptProps = '(monitor)'
SendQEntries = '(monitor)'
LogXptStatus = '(monitor)'
RecvQEntries = '(monitor)'
SidName(*)
StaticConnectIdentifier(*)
StandbyArchiveLocation(*)
AlternateLocation(*)
LogArchiveTrace(*)
LogArchiveFormat(*)
TopWaitEvents(*)
(*) - Please check specific instance for the property value
Database Status:
SUCCESS
DGMGRL> show configuration
Configuration - dg
Protection Mode: MaxPerformance
Databases:
prim - Primary database
stby - Physical standby database (disabled)
ORA-16795: the standby database needs to be re-created
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
On the stby side it looks like:
DGMGRL> show configuration
ORA-16795: Die Standby-Datenbank muss neu erstellt werden (The standby database needs to be recreated)
Did I have to create a new dataguard configuration?
I didn't know how I get this to work.
Thx fuechsin
Hi,
first of all: big thanks for your answer!
I think, this was a bad idea, too. But there was not enough space, so we decided to turn it off without thinking of consequences. :/
When the new hardware arrive I will enable flashback and never turn it off
The dataguard-log on the stby says:
01/23/2014 11:56:13
>> Starting Data Guard Broker bootstrap <<
Broker Configuration File Locations:
dg_broker_config_file1 = "/Daten/stby/stby_dgbroker1.dat"
dg_broker_config_file2 = "/Daten/stby/stby_dgbroker2.dat"
01/23/2014 11:56:17
Database needs to be reinstated or re-created, Data Guard broker ready
I want to try to delete the configuration on the prim and stby side and reconfigure it. But I don't know if there are side-effects on the working prim side - it is a productive system.
Best regards,
fuechsin
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