High Availability Options for

Enterprise Manager 12c

UKOUG App Server & Middleware SIG

9 October 2014

Agenda

Architecture

HA Approaches

Licensing

Demo

Architecture

Tiers ◦ Combined web tier and application (OMS)

◦ Database

◦ Agents with plug-ins on nodes to be managed

OHS

WebLogic

Database

Agent

Managed targets

OMS (monolithic unit)

EM console or CLI

Software Library

Other components, like BIP or RUEI, not shown

OHS

WebLogic

Database (RAC, RON, EE)

Agent OHS

WebLogic

Load Balancer

HA: single site

Software Library

Storage replication/sync for multi-site software libraries

DR with local HA (from Oracle doc)

HA Options / Official ‘Levels’

I’m not too keen on these definitions!

HA Options in Practice

Do you really need RAC for EM repository?

Data Guard recommended

VMware user? ◦ Consider a nice ‘all in one’ EM VM – up to mid-size

◦ It just works…

◦ vMotion, DRS & SRM has implications for licensing

Licensing

EM is primarily paid for via Packs on target nodes ◦ E.g. EM WebLogic Pack, EM SOA Pack

Anything other than single instance EM repo database needs extra licences: ◦ RAC (EE included, all nodes need RAC option though) ◦ Data Guard (EE needed for standby, optionally RAC too) ◦ OMS (i.e. OHS & WLS) doesn’t need a licence as long as only

used for EM

References

Oracle® Enterprise Manager Cloud Control Advanced Installation and Configuration Guide 12c Release 4 (12.1.0.4) E24089-34 e.g. 16 High Availability Solutions Oracle® Enterprise Manager Licensing Information 12c Release 4 (12.1.0.4) E24474-32 e.g. 1.5 Enterprise Manager Restricted-use License

Demo

Simulating OMS node or network failure

Demo environment: ◦ BIG-IP load balancer

◦ 2 OMS nodes

◦ Single instance database

High Availability Options for

Enterprise Manager 12c

UKOUG App Server & Middleware SIG

9 October 2014