The Oracle RAC Family of Solutions - Presentation

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Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 1

The Oracle Real Application Clusters (RAC) Family of Solutions – a “User Guide” Markus Michalewicz Director of Product Management Oracle Real Application Clusters (RAC)

@OracleRACpm http://www.linkedin.com/in/markusmichalewicz

http://www.slideshare.net/MarkusMichalewicz

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Agenda

§  Overview

§  Introduce Oracle RAC “Step-by-Step”

§  Add Additional Value Free of Charge

§  Use Consolidation to Reduce Costs

§  Oracle RAC and Oracle VM

§  Summary


Oracle Real Application Clusters (RAC) 12c §  Overview

–  A clustered database solution for high availability (HA), scalability, agility, flexibility and elasticity

–  Oracle's premier shared disk database clustering technology

–  Choice of administrator-managed or policy-managed deployments

§  Benefits –  Runs all database workloads –  Foundation for DBaaS –  Scale out and scale up on-demand –  Highest availability for the database –  Flexible workload management

Oracle Real Application Clusters (RAC)

Oracle Grid Infrastructure (GI):

Automatic Storage Management (ASM)

Oracle Clusterware (OCW)

Oracle Flex ASM

CRM

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Oracle RAC Evolution

Oracle Database 10g RAC (* 2004)

Oracle 6 to Oracle8i

OPS (* 199x)

Oracle9i Rel. 1 Oracle9i Rel. 2 RAC (* 2001)

Oracle Database 11g Rel. 1 with RAC (* 2007)

Oracle Database 12c Rel. 1 with RAC (* 2013)

Oracle Database 11g Rel. 2 with RAC (* 2009)

Oracle RAC

One Node A

DB A DB A


Family of Solutions



Oracle Clusterware (OCW) DB A DB B

DB C DB B

DB B




Oracle Flex ASM

Oracle RAC

One Node A

Oracle RAC

One Node B Oracle Real Application Clusters (RAC)




Oracle Flex ASM

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Oracle RAC and Oracle Multitenant The new standard for Oracle Database Consolidation

Consolidation

Agi

lity

Oracle GI

Oracle RAC


Oracle Database 12c High Availability

Four Standard Reference Architectures

GOLD Comprehensive HA and Disaster Protection Zero or near-zero data loss

SILVER High Availability (HA) for Recoverable Local Outages Data protected as of last backup

BRONZE Single Instance Database, Basic Service Restart Data protected as of last backup

PLATINUM Zero Outage for Platinum Ready Applications Zero data loss

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Agenda

§  Overview





§  Summary


Agenda

§  Overview

§  Introduce Oracle RAC “Step-by-Step”: 1.  Standardize on Clusters

2.  Standardize the Database Deployment

3.  Standardize on Oracle RAC




§  Summary

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Introduce Oracle RAC Step by Step

§  Overview –  Oracle Grid Infrastructure (GI) combines:

§  Oracle ASM & Oracle ACFS §  Oracle Clusterware

–  Oracle GI can replace any 3rd party cluster solution for failover purposes

§  Benefits –  Free of charge when used for Oracle –  Provides:

§  Cluster-based High Availability §  Flexibility, agility and simplified

resource management in the cluster

Step 1: Standardize on Clusters with Oracle Grid Infrastructure





Standardize on Clusters Clusters increase flexibility and HA regardless of DB types used later

Oracle GI

Oracle GI

Oracle GI for a Cluster

Oracle GI for a

Cluster

High Availability

Flex

ibili

ty

License Costs

Oracle GI

Standalone

Oracle GI Re-configuration

to enable cluster

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Agenda

§  Overview


2.  Standardize the Database Deployment 3.  Standardize on Oracle RAC




§  Summary



§  Overview –  Single instance databases (DBs) can

be deployed on a cluster infrastructure

§  Benefits –  Single instance DBs benefit from

cluster-inherent HA and resource management features immediately:

§  Oracle Flex ASM HA capabilities §  SRVCTL as the management tool

Step 2: Standardize your database deployment on clusters

DB A DB B

DB C DB B

DB B

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Introduce Oracle Flex ASM Inter-node volume manager failover and HA for all Oracle 12c DBs

ASM Cluster Pool of Storage

Disk Group B Disk Group A Shared Disk Groups Wide File Striping

Databases share ASM instances

ASM Instance

Database Instance

ASM Disk

Cluster

Node5 Node4 Node3 Node2 Node1

Node5 runs as ASM Client to Node4




ASM ASM ASM

ASM Instance

SI DB

SI DB

RACDBA

RACDBA

RACDBA


ACFS – The ASM based Cluster File System ACFS is part of Oracle GI, hosts all data and is fully integrated

ASM Cluster Pool of Storage

Disk Group B Disk Group A Shared Disk Groups Wide File Striping

Databases share ASM instances ASM Instance

Database Instance

ASM Disk

Cluster

Node5 Node4 Node3 Node2 Node1 ASM ASM ASM

SI DB

RACDBA

RACDBA

RACDBA

Applications use ACFS for all data

ACFS ACFS ACFS ACFS ACFS

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Standardize on Oracle RAC For better availability during maintenance operations

Oracle GI DB A DB A

DB A Oracle RAC

High Availability

Scal

abili

ty

Online (rolling) Patch and PSU Application Oracle GI DB A

DB A Oracle RAC One Node



§  Overview –  Oracle RAC One Node is a RAC-enabled

DB running only one instance normally. –  In case of a server or instance failure,

the one running instance is started on another server in the cluster (failover)

§  Benefits –  Better than 3rd party failover clusters:

§  Faster failover §  Online Database Relocation minimizes

planned maintenance (patching). §  Integrated into the Oracle RAC Stack

Step 2.1: Use Oracle RAC One Node as a minimum

DB A DB B

DB C DB B

DB B




Oracle Flex ASM

Oracle RAC

One Node A

Oracle RAC

One Node B

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Database Failover

§  On failure of –  a database (DB) instance –  Or the server hosting the DB –  Or other failures impacting operation

§  Oracle RAC One Node will fail over the database instance to another server in the cluster

§  Servers can be chosen using either administrator-managed or policy-managed resource allocation rules

Oracle RAC One Node provides standard DB cold-failover functionality

Node3 Node2

Oracle Flex ASM based pool of shared storage

Node1

Public Network

DBB DBC DBA

Oracle Grid Infrastructure

DBE DBD DBA


Oracle RAC One Node Failover Shortest failover time compared to third party solutions

0 5 10 15 20 25 30 ASM eliminates need for storage failover

RAC One Node Cluster Failover (time)

(transactions)

0 5 10 15 20 25 30

3rd-Party Failover

(time)

(transactions)

Extensive downtime for storage failover

down up Recovers in 25 minutes (source: online payment provider)

Recovers in minutes (source: )

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Online Database Relocation for better HA

§  Online Database Relocation is the only solution on the market that can minimize downtime during scheduled maintenance operations such as:

–  Patching (HW, OS, database homes)

–  Resource re-allocation due to demand

Oracle RAC One Node-specific functionality that makes the difference

Node3 Node2

Oracle Flex ASM based pool of shared storage

Node1

Public Network

DBB DBC

Oracle Grid Infrastructure

DBE DBD DBA

DBA Online DB Relocation


RAC One Node: Online Database Relocation Almost no disruption during planned maintenance

0 5 10 15 20 25 30

Online Database

Relocation (time)

Failover

down up

0 5 10 15 20 25 30 (time)

Recovers in minutes – source:

Almost no disruption – source:

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Oracle RAC One Node 12c – Summary Oracle RAC One Node 12c provides:

1.  Best in-class single instance Oracle Database availability

2.  Better database consolidation

3.  Better database virtualization

Using

§  A standardized and improved deployment and management

§  A familiar and matured HA stack –  Oracle Grid Infrastructure




Oracle Flex ASM

CRM

Oracle RAC

One Node A

Oracle RAC

One Node B


Agenda

§  Overview


2.  Standardize the Database Deployment

3.  Standardize on Oracle RAC




§  Summary

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Standardize on Oracle RAC For all the flexibility you need

Oracle GI DB A DB A

Oracle GI DB A DB A

DB A

Oracle RAC One Node Oracle RAC

Flexibility

Scal

abili

ty

Online

upgrade



§  Overview –  A clustered database solution for

high availability (HA), scalability, agility, flexibility and elasticity

§  Benefits –  Runs all database workloads –  Foundation for DBaaS –  Scale out and scale up on-demand –  Highest availability for the database –  Flexible workload management

Step 3: Standardize on Oracle RAC

Oracle Real Application Clusters (RAC)




Oracle Flex ASM

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Oracle RAC One Node vs. Oracle RAC “Always On” vs. “Always Running”

Oracle GI DB A

DB A

DB B

DB B

Oracle GI

DBA

DBA

DBB

DBB

§  Oracle RAC: multiple instances per database running concurrently

§  Oracle RAC One Node: one instance per database running at a time


Failover Times Oracle RAC – always better than any 3rd party implementation

0 5 10 15 20 25 30 Oracle RAC

(time)

0 5 10 15 20 25 30

Oracle RAC One Node Failover

(time)

0 5 10 15 20 25 30

3rd-Party Failover

(time)

down up

Recovers in 25 minutes

Recovers in minutes

Almost no disruption

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Agenda

§  Overview





§  Summary


Added Value for Free ACFS & Flex Cluster are free with Oracle RAC (One Node)

DB A DB A

DB A DB B

DB B

Hub Nodes

Leaf Nodes

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Oracle Flex Cluster The new standard for resource management in the cluster

§  Oracle Flex Cluster: –  The new standard for flexible

resource management in the cluster §  Use it as demand requires it

§  Inherits all Flex ASM HA capabilities

§  Will support more use cases in future

–  Efficient High Availability and resource management across tiers

§  Lightweight cluster stack on leaf nodes

–  Benefit from virtualization and physical deployments in one cluster

DB A DB A

DB A DB B

DB B

Hub Nodes

Leaf Nodes


Added Value for Free Application Continuity & QoS are free with Oracle RAC (One Node)

CRM

DB A DB A

DB A DB A

DB A

✔ Database Cloud

Services

SLA Management

JIT Resource Allocation

Quality of Service Management

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Application Continuity & Transaction Guard Mask Unplanned & Planned Outages

§  Replays in-flight (DML) work on recoverable errors

§  Masks many hardware, software, network, storage errors and outages when successful

§  Improves end-user experience and productivity without requiring custom application development

CRM

DB A DB A

DB A DB A

DB A

✔


Agenda

§  Overview





§  Summary

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§  Overview –  Running multiple workloads in a shared

infrastructure allows for standardized deployments dividing the costs across multiple projects

§  Benefits –  Cost savings

§  Using standardized deployments §  Utilizing a faster time to market

–  Cost sharing across projects

Consolidation = Share the benefits and reduce the costs

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Commonwealth Bank n  The Commonwealth Bank (CBA) is one of Australia’s leading providers of

integrated financial services including retail, business and institutional banking, funds management, superannuation, insurance, investment and broking services. The Bank is one of the largest listed companies on the Australian Stock Exchange.

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Introduction

n  In 2007 CBA set out to create an Oracle database shared service offering for the bank •  The offering has been highly successful by several measures •  Oracle-as-a-Service has continued to be developed through several iterations

n  Oracle as a Service (OaaS) v1 – went live May 2008

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n  Host many Oracle database applications on a cluster of hardware

n  Processor consolidation

•  Run each server hotter •  Take advantage of complimentary workload peaks.

n  Higher Availability

•  Load balancing •  HA failover for component failure •  Standby DR •  Most apps do not implement these features – too expensive

n  Cost Reduction

n  Better Service

•  Full time experts •  Always on-call

n  Reduced Risk

•  Whole environment is managed •  Operated as a “business”

Oracle as a Service In A Nutshell

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Reduce Risk, Improve Time to Market n  For new Projects:

•  Remove a phase from the project – infrastructure already in place •  Remove reliance on expensive/scarce SME resources for design and build •  No longer need to manage risk associated with procurement and build •  Time to instantiate a new Production quality environment: 3 months -> 2 minutes.

n  Example: New ISV Application introduced into our Online Share Trading platform •  Required to test performance under the workload

& data volume conditions projected in 2 years time.

Dedicated Infrastructure OaaS

Implementation Time 3-4 months few hours

$ Cost to Project Several hundred thousand < $10K

On Project Completion Under-utilized asset remains Environment turned-off


Agenda

§  Overview





§  Summary

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Oracle RAC and Virtualization


Virtualization – a Black Box Approach A simple solution without insight

Bare-Metal Server

DOM-0 Hypervisor Guest

Dom-0 Guest

Bare-Metal Server

DOM-0 Hypervisor

Dom-0 Guest Guest

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Live Migration = Moving a Black Box Live Migration moves a black box from one server to another

Bare-Metal Server


Dom-0 Guest

Bare-Metal Server

DOM-0 Hypervisor

Dom-0 Guest Guest

Live Migration


Virtual Machine HA = Restarting a Black Box Virtual Machine HA restarts / fails over a virtual machine on failure

Bare-Metal Server


Dom-0 Guest

Bare-Metal Server

DOM-0 Hypervisor

Dom-0 Guest Guest

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Virtual Machine HA = Restarting a Black Box But what if the application needs attention?

Bare-Metal Server


Dom-0 Guest

Bare-Metal Server

DOM-0 Hypervisor

Dom-0 Guest

DBA ?


High Availability Requires Insight The Oracle RAC Stack provides the insight

Bare-Metal Server


Dom-0 Guest

Bare-Metal Server

DOM-0 Hypervisor

Dom-0 Guest Guest

DBC1 DBA1

+1

DBC2 DBA2

+1

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Agenda

§  Overview





§  Summary


Oracle Database 12c High Availability

Four Standard Reference Architectures Service Level Application Impact Proposed Solution

SILVER High Availability (HA) for

Recoverable Local Outages Data protected as of last backup

Use Oracle RAC One Node

GOLD Comprehensive HA

and Disaster Protection Zero or near-zero data loss

Standardize on Oracle RAC

PLATINUM Zero Outage for

Platinum Ready Applications Zero data loss

Use Oracle RAC & Application Continuity

BRONZE Single Instance Database,

Basic Service Restart Data protected as of last backup

Standardize on Clusters

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15000+ Customers and counting…


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The Oracle RAC Family of Solutions - Presentation

Technology