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Monday, December 3, 2012
Create Blackout using Emcli
Mostly We used to login to the Enterprise Manager to create blackout which will be slow when we are trying to access Client EM from Local machine.
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## Easier Way to Create A blackout Using EMCLI :
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Logon to the server where database is running and set the Agent envionment .
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## Server Blackout
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emcli create_blackout -name="Blackout_Name" -reason="reboot due to memory errors" -add_targets="server01:host" -schedule="duration:-1"
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## Server & and its associated databases Blackout
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Use propagate_targets to blackout the host and its associated oracle services (database, agent, asm, etc.)
emcli create_blackout -name="Blackout_Name" -reason="reboot due to memory errors" -add_targets="server01:host" -schedule="duration:-1" -propagate_targets
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## Single Database Blackout
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emcli create_blackout -name="Blackout_Name" -add_targets="db_name:oracle_database" -schedule="duration:30"
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## Multiple Database Blackout
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emcli create_blackout -name="Blackout_Name"-reason="Failover" -add_targets="db1_name:oracle_database;db2_name:oracle_database" -schedule="duration:30"
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## Blackout for RAC Database
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emcli create_blackout -name="Blackout_Name"-reason="Failover" -add_targets="instance_name:oracle_database;cluster_name:rac_database" -schedule="duration:30"
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## Unlimited Blackout
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emcli create_blackout -name="Blackout_Name"-reason="Failover" -add_targets="instance_name:oracle_database;cluster_name:rac_database" -schedule="frequency:once;duration:-1"
If we give duration = "-1" then it denotes that unlimited Duration
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## Show List of Targets in the Blackout
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emcli get_blackout_targets -name=Blackout_Name
agent11g @ myserver03:/u01/home/oracle/admin/scripts
> emcli get_blackout_targets -name=Blackout_Name
Target Name Target Type Status Status ID
mydb_2 oracle_database In Blackout 1
mydb1_2 oracle_database In Blackout 1
mydb2_2 oracle_database In Blackout 1
mydb3_2 oracle_database In Blackout 1
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## Check Whether database is in blackout
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emcli get_blackouts -target=mydb_1:oracle_database
agent11g @ myserver03:/u01/home/oracle
> emcli get_blackouts -target=mydb_1:oracle_database
Name Created By Status Status ID Next Start Duration Reason Frequency Repeat Start Time End Time Previous End
TZ Region TZ Offset
Blackout_name SYSMAN Started 4 2012-08-28 16:42:19 -00:01 none once none 2012-08-28 16:42:19 none none
America/Chicago +00:00
If the above command produces output like above then db is under blackout. If no output then db is not under blackout
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## Blackout Details
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emcli get_blackout_details -name=failover_03-dec-2012
agent11g @ myserver03:/u01/home/oracle/admin/scripts
> emcli get_blackout_details -name=failover_03-dec-2012
Status Status ID Run Jobs Next Start Duration Reason Frequency Repeat Days Months Start Time End Time TZ Region TZ Offset
Start In Progress 1 no 2012-12-03 04:35:24 -00:01 Failover once none none none 2012-12-03 04:35:24 none US/Central +00:00
agent11g @ myserver03:/u01/home/oracle/admin/scripts
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## Stop Blackout
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emcli stop_blackout -name="Blackout_name"
agent11g @ myserver03:/u01/home/oracle
>emcli stop_blackout -name="Blackout_name"
Blackout "Blackout-Aug 28 2012 4:42:11 PM" stopped successfully
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## Delete Blackout
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emcli delete_blackout -name=Blackout_name
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7 comments:
Hello, Do you know how to create an agent´s blackout?
Thanks.
Hi,
You can use the below option to blackout the server and its associated databases. ( Agent monitors all the databases configured in the server. So placing an agent in blackout is same as below).
##########################
## Server & and its associated databases Blackout
##########################
Use propagate_targets to blackout the host and its associated oracle services (database, agent, asm, etc.)
emcli create_blackout -name="Blackout_Name" -reason="reboot due to memory errors" -add_targets="server01:host" -schedule="duration:-1" -propagate_targets
Is there a way blackout any/all databases from the oms server using command line option
How much time typically it takes to create blackout say for 4 node RAC DB?
It will take almost same amount of time for a one node rac. Not more than 15 seconds
What is the maximum number of targets I can put in the '-add_targets=' option?
I've not checked the maximum limit and i don't think its mentioned as per Oracle Documentation.
But i hope it should be unlimited, Please let me know if you got time to test with numerous targets.
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