02 September 2014

Using OEM 12c - notes from Oracle course

2 products exist for managing: Cc + Ops Center (host management)

Oracle HTTP server is started up implicitly when OMS is started. Managed by opmnctl process (if we need explicitly to run something).

Discovery
=======
Agent-based (self explanatory) or Agent-less (scans all IP n/w addresses. Then you can review and promote what you want)

Backup
=====
Backup s/w home. That will cover WLS admin server, the whole web logic, OMs and webtier configuration files.
Backup the instance home: emctl exportconfig oms command.

Monitor
=====
What happens during the upgrade to user-defined metrics? They are called metric extensions now.
Linux and Solaris hosts can be monitored but YaST needs to be installed.
Targets can be grouped in a "group". Notification can be done 'per group'.
Part of service Level Mgmt pack:
  -- Define "SYSTEM" for bunching up all targets that are the infrastructure for the services (like SAP, PS, etc...)
  -- One SYSTEM can be an infrastructure for multiple services.
Use SYSTEMs and beacons for end-to-end monitoring.
  -- Service test is end-to-end test.
  -- Availability can be defined per service

Some events are statefull and some stateless. Statefull
emcli clear_stateless_elements -older_then=7 -target_type=oracle_database  (older than 7 days)

Events/Incidents/Problems
====================
For Enterprise Manager 12c, the concept and function of notification rules has been replaced with a two-tier stem consisting of Event Rules and Incident Rule Sets.
Create rules on any of these, to email or do something.
Problem is a type of incident with the same root cause
Incident is something you need to act on
Event Rules: Operate at the lowest level granularity (on discrete events) and performs the same role as notification rules from earlier releases.

Software Lifecycle Management
=======================
Roles can be more granular: admin, designer (designs workflows), operators
DBA needs to configure the software library, put gold images inside
  -- OMS and all agents need to be able to access the shared file system
Deployment:
  -- create a database profile
  -- create a procedure workflow (Like "Clone Database", "Patch database")
  -- publish it and Launch it
  -- Ability to pause and resume upgrade (by setting breakpoints

Reports
======
Lots of Predefined reports
!! We can replace our daily report with one of the OEM reports
https://zpgrid1:7799/public/reports,

Oracle Enterprise Manager Connectors Integration
=====================================
Guide number E25163-4

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