One of the key task that a DBA performs repeatedly is Provisioning of Databases which also happens to one of the top 10 Database Challenges as per IOUG Survey .
Most of the challenge comes in form of either Lack of Standardization or it being a Long and Error Prone Process . This is where Enterprise Manager 12c can help by making this a standardized process using profiles and lock-downs ; plus have a role and access separation where lead dba can lock certain properties of database (like character-set or Oracle Home location or SGA etc) and junior DBA's can't change those during provisioning .Below image describes the solution :
In Short :
- Its Fast
- Its Easy
- And you have complete control over the lifecycle of your dev and production resources.
I actually wanted to show step by step details on how to provision a 11204 RAC using Provisioning feature of DBLM , but today i saw a great post by MaaZ Anjum that does the same , so i am going to refer you to his blog here :
Patch and Provision in EM12c: #5 Provision a Real Application Cluster Database
Other Resources :
Official Doc : http://docs.oracle.com/cd/E24628_01/em.121/e27046/prov_db_overview.htm#CJAJCIDA
Screen Watch : https://apex.oracle.com/pls/apex/f?p=44785:24:112210352584821::NO:24:P24_CONTENT_ID%2CP24_PREV_PAGE:5776%2C1
Others : http://www.oracle.com/technetwork/oem/lifecycle-mgmt-495331.html?ssSourceSiteId=ocomen