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With the Oracle Multitenant option of Oracle Database 12c, the services of individual pluggable databases (PDBs) can be opened selectively on specified nodes of an Oracle Real Application Clusters (Oracle RAC) cluster. By partitioning the System Global Areas in this way across the cluster, the Oracle Multitenant option with Oracle RAC can be used to “scale out” across a cluster for flexible adaptation to varying load profiles. A true symbiotic relationship: the Oracle Multitenant option makes Oracle RAC better, and Oracle RAC makes the Oracle Multitenant option better!
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Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 1
The Oracle Multitenant Option meets Oracle RAC Patrick Wheeler, Senior Director of Product Management Markus Michalewicz, Director of Product Management
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Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 3
Safe Harbor Statement
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 4
Agenda
! Introduction ! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
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Oracle Multitenant and Oracle RAC Winning combination of scalability & reliability for consolidated databases
Oracle Multitenant & Oracle RAC
• Scalability • Flexibility • Reduced Costs
Oracle RAC: Scalable, Reliable
Oracle Multitenant • Consolidation means
“putting all your eggs in one basket”
• Consolidating many databases into one demands scalable platform
Oracle RAC • Means managing
many nodes in the cluster as one system
• Provides resiliency against individual server failures
• Allows for horizontal scaling
Multitenant: Simplify Consolidation
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 6
Standardize on Oracle RAC and Oracle Multitenant The new standard for Oracle Database Consolidation
Oracle GI
Oracle RAC One Node
Consolidation
Agi
lity
Oracle GI
Oracle RAC
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Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 8
Oracle Multitenant Architecture Components of a Multitenant Container Database (CDB)
Pluggable Databases (PDBs)
PDBs
Root
CDB
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Oracle Multitenant Architecture – Dynamics
! PDBs share common SGA and background processes
! Foreground sessions see only the PDB they connect to
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 10
Advantages of Oracle Multitenant Architecture Reduced CapEx & OpEx, Increased Agility, Easy Adoption
Self-contained PDB for each application ! Applications run unchanged ! Rapid provisioning (via clones) ! Portability (via pluggability)
Shared memory and background processes ! More applications per server
Common operations performed at CDB level ! Manage many as one (upgrade, HA, backup) ! Granular control when appropriate
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Oracle RAC support for Oracle Multitenant Start off with a Single Instance, non-CDB
Server
Database Instance
Services
Server
Database Instance
CRM North
CRM South Services CRM
Reporting
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 12
Oracle RAC support for Oracle Multitenant Convert to a RAC Database, non-CDB
Node 1
RAC Instance 1
Services
Node 1
RAC Instance 1
CRM North
CRM South Services
Node 2
RAC Instance 2
CRM Reporting
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Oracle RAC support for Oracle Multitenant Convert to a CDB RAC Database
Node2
CDB Instance 2
Node1
CDB Instance 1
CDB
Services
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 14
Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
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HRg1wc
Why Use Services? In a Single Instance environment the default service may be enough
! The default service of the CDB is started when the CDB is started. This is an admin-service.
! The default service of the PDB is available for connectivity as soon as PDB is mounted with the startup of the CDB.
! If an application uses the default service for connectivity, it can connect to this service as soon as it is registered with the listener.
– How to prevent an application from connecting?
rudolph
cdb1
sqlplus <user>/<pwd>@MySCAN/crmsvc
CRM PDB Default service HR PDB CRMSVC
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 16
HRg1wc
Why Use Services? Using the default service is not enough when moving PBS around
! PDBs provide location independency (plug / unplug / clone), but exist within an environment
! Moving PDBs between environments may require changing names of PDBs.
! Use services to provide a “dial in number” for your application. If the PDB moves to another location, you can keep the number.
– This requires uniqueness of service names
rudolph
cdb1
CRM PDB HR PDB CRMSVC
cupid
cdb1
NewHR PDB
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Use Services with Policy Managed Databases For better HA and workload management
! Oracle RAC-based systems allow for management of services based on policies.
! Server Pools are used to group workload to run on either one or a group of servers in the pool.
! Using policies allows for adapting to changes in demand (Dynamic Database Services)
HRg1wc HR PDB
CRM PDB CRMSVC
vixen srvpool: backoffice comet srvpool: frontoffice
dancer srvpool: frontoffice dasher srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_1
raccdb1_4 Raccdb1_3
Raccdb1_2
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 18
Policy-Managed Databases with Oracle RAC 12c Improved HA Management - Startup
raccdb1
! Defining a Service Startup Order – Ensure services are started in specified groups
and specified order.
– Leverages Serverpool Min and Importance properties
dasher srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_4
1st
vixen srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_3
2nd
comet srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_1
4th
dancer srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_2
3rd
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dancer srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_2
dancer srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_2
Policy-Managed Databases with Oracle RAC 12c Improved HA Management – New Failover Strategy
raccdb1
dasher srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_4
vixen srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_3
comet srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_1
! Servers “Move” to Replace Failed node – Protects against cascade failures due to load
– Ensures workload isolation between pools
– Less important workloads shutdown transactionally
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 20
dancer srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_2
dancer srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_2
comet srvpool: backoffice Oracle GI for a cluster
Oracle RAC
raccdb1_1
comet srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_1
Policy-Managed Databases with Oracle RAC 12c Improved HA Management – Manage Last Service Standing
raccdb1
dasher srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_4
vixen srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_3
! Business Critical Services survive multiple failures – Most important pool always gets the servers
– Services preserved across multiple failures
– Less important workloads shutdown transactionally
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Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 22
Expand Cluster to Support Flexible Consolidation Model Services
Single SGA per CDB Instance
Improved Agility With Changing Workloads
Node1
CDB Instance 1
Node2
CDB Instance 2
Multitenant Container Database (CDB)
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Expand Cluster to Support Flexible Consolidation Model Services
Single SGA per CDB Instance
Node1
CDB Instance 1
Node2
CDB Instance 2
Node3
CDB Instance 3
Improved Agility With Changing Workloads
Multitenant Container Database (CDB)
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 24
Improved Agility With Changing Workloads Facilitating Policy-Managed Dynamic Database Services
HRg1wc HR PDB
CRM PDB CRMSVC
vixen srvpool: backoffice comet srvpool: frontoffice
dasher srvpool: frontoffice Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_1
raccdb1_4
dancer srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_3
raccdb1_2
sqlplus <user>/<pwd>@MySCAN/crmsvc
SQL> select instance_name,host_name from v$instance; INSTANCE_NAME HOST_NAME ------------------------------------ raccdb1_3 dancer
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Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 25
Improved Agility With Changing Workloads Facilitating Policy-Managed Dynamic Database Services
HRg1wc HR PDB
CRM PDB CRMSVC
sqlplus <user>/<pwd>@MySCAN/crmsvc
SQL> select instance_name,host_name from v$instance; INSTANCE_NAME HOST_NAME ------------------------------------ Raccdb1_1 vixen
vixen srvpool: frontoffice comet srvpool: backup
dancer srvpool: backup dasher srvpool: backoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_1
raccdb1_4 raccdb1_3
raccdb1_2
backup
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 26
dancer srvpool: frontoffice Oracle GI for a cluster
Oracle RAC
raccdb1_3
Improved Agility With Changing Workloads Stopping a PDB once it was opened r/w or ro using services
vixen srvpool: frontoffice comet srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
raccdb1
raccdb1_1 Raccdb1_2
sqlplus <user>/<pwd>@MySCAN/crmsvc " ERROR: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
! Services regulate user access to a database – The first service assigned to a PDB opens
the PDB in read/write mode (default)
– Stopping a service does not close the PDB
! User access to this PDB is prevented.
– The buffers held by the PDB not actively used will be subject to regular buffer aging operations
! Use SQL to stop a PDB (on an instance) as required
Buffers HRg1wc HR PDB CRMSVC
CRM PDB
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Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 27
Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 28
Create an Oracle RAC Database What is the default when keeping the preselection in steps 1-4…?
! Policy-managed
! Oracle RAC-based
! Non-CDB Database
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Create an Oracle RAC-based CDB Create a CDB instead…
Create an empty multitenant CDB.
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 30
Milestone What has been installed and configured so far?
vixen srvpool: frontoffice comet srvpool: backoffice
dancer srvpool: backoffice dasher srvpool: frontoffice
OS OL 6.4 OS OL 6.4
OS OL 6.4 OS OL 6.4
Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_2
raccdb1_1
[RAC]> srvctl status database -d raccdb1 Instance raccdb1_1 is running on node comet Instance raccdb1_2 is running on node dancer [RAC]>srvctl status srvpool -serverpool backoffice -detail Server pool name: backoffice Active servers count: 2 Active server names: comet,dancer NAME=comet STATE=ONLINE NAME=dancer STATE=ONLINE [RAC]> srvctl status srvpool Server pool name: Free Active servers count: 0 Server pool name: Generic Active servers count: 0 Server pool name: backoffice Active servers count: 2 Server pool name: frontoffice Active servers count: 2
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Create Pluggable Databases Create HR PDB on running instances
vixen srvpool: frontoffice comet srvpool: backoffice
dancer srvpool: backoffice dasher srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_2
raccdb1_1
Create a PDB on a node that hosts a multintenant
CDB instance
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 32
Create Pluggable Databases Create CRM PDB on running instances
vixen srvpool: frontoffice comet srvpool: backoffice
dancer srvpool: backoffice dasher srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_2
raccdb1_1
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Post-Creation Steps Create services – part 1
vixen srvpool: frontoffice comet srvpool: backoffice
dancer srvpool: backoffice dasher srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_2
raccdb1_1 [RAC]> srvctl add service -d raccdb1 -s hrsvc -pdb hr -serverpool backoffice [RAC]> srvctl add service -d raccdb1 -s crmsvc -pdb crm -serverpool frontoffice [RAC]> srvctl start service -d raccdb1 -s hrsvc [RAC]> srvctl start service -d raccdb1 -s crmsvc
! Dynamic Database Services – For easier management of multitenant CDBs
– For better workload management in the cluster
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 34
! Pluggable Databases – By default are in mount status after creation
– They need to be opened in either r/o or w/r
– Startup and distribution of Pluggable databases can be automated and optimized using services
Post-Creation Steps Create services – part 2
vixen srvpool: frontoffice comet srvpool: backoffice
dancer srvpool: backoffice dasher srvpool: frontoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
raccdb1_3
raccdb1_4 raccdb1_2
raccdb1_1
[RAC]> srvctl status database -d raccdb1 Instance raccdb1_1 is running on node comet Instance raccdb1_2 is running on node dancer Instance raccdb1_3 is running on node vixen Instance raccdb1_4 is running on node dasher [RAC]> srvctl status service -d raccdb1 Service crmsvc is running on nodes: vixen,dasher Service hrsvc is running on nodes: comet,dancer
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Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 35
Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB ! Summary and Q&A
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 36
Manage Many as One with Multitenant Backup databases as one; recover at pluggable database level
One Backup
Point-in-time recovery At pluggable database level
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Manage Many as One with Multitenant Backup databases as one; recover at pluggable database level
vixen srvpool: frontoffice comet srvpool: backup
dancer srvpool: backup dasher srvpool: backoffice Oracle GI for a cluster Oracle GI for a cluster
Oracle GI for a cluster Oracle GI for a cluster
Oracle RAC Oracle RAC
Oracle RAC Oracle RAC
raccdb1
Raccdb1_1
raccdb1_4 raccdb1_3
raccdb1_2
Backup
Point-in-time recovery At pluggable database level
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 38
Multitenant for Simplified Upgrades Apply changes once, all pluggable databases updated
Upgrade in-place
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Multitenant for Patching Flexible choice when patching & upgrading databases
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Standardize on Oracle RAC and Oracle Multitenant The new standard for Oracle Database Consolidation
Oracle GI
Oracle RAC One Node
Consolidation
Agi
lity
Oracle GI
Oracle RAC
Online (rolling) Patch and PSU Application
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Agenda
! Introduction
! Oracle Multitenant and Oracle RAC Basics
! Why Use Database Services
! Improved Agility with Changing Workloads
! Creating an Oracle RAC-based CDB
! Administering an Oracle RAC-based CDB
! Summary and Q&A
Copyright © 2013, Oracle and/or its affiliates. All rights reserved. 42
Benefit Capability Enabled
Minimize CapEx • More applications per server
Minimize OpEx • Manage many as one • Standardized procedures & service levels • Cloning for development / testing
Maximize Agility • Rapid provisioning • Portability through “pluggability” • Scalability with RAC
Ease of Adoption • Applications run unchanged
Key Benefits
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Graphic Section Divider
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