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SIOUG Conference 2011 Maximizing Oracle Database Availability with Oracle RAC One Node 1 Svetoslav Gyurov CNSys PLC 19 September 2011 Portorož, Slovenia

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About me Senior DBA at CNSys PLC Responsible for system and database integrations. Working with Linux for 12 years, started with Slackware 3.6, Kernel 2.0.34 2 Slackware 3.6, Kernel 2.0.34 Working with HP-UX for 6 years Started with Oracle 10g Oracle Certified Professional DBA 9i, 10g HP-UX Certified System Expert 11iv2, 11iv3

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Agenda • Overview • Deployment • High Availability • Consolidation 3 • Demo

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Agenda • Overview • Deployment • High Availability • Consolidation 4 • Demo

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RAC One Node • New option to the Oracle Database 11.2 EE. • Unlike the Oracle RAC feature, RON is not available with SE. • The only new database addition with this release. • Introduced first with 11.2.0.1 • Apply 9004119 to get the text based utilities. 5 • Apply 9004119 to get the text based utilities. • RAC One -- Changes in 11.2.0.2 [ID 1232802.1] • OUI and DBCA aware from 11.2.0.2. • Oracle RAC One Node is a single instance of an Oracle RAC enabled database.

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RAC One Node • RAC One Node is an option of Oracle 11.2 EE. • $10,000 per processor. • Eligible for upgrade to full RAC. • All nodes on which RAC One Node is installed must be licensed for RAC One Node 6 be licensed for RAC One Node • RAC One node is eligible for 10-day rule in a calendar year. • Oracle RAC One Node can be online upgraded to full Oracle RAC (license!). • Supported on all platforms on which Oracle RAC is certified! • No additional certifications for RON.

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The “Always on” single instance database • Solution to reduce planned downtime. • Online database relocation. • Online storage and server replacement. • Online OS and DB patching. 7 • Solution to reduce unplanned downtime. • Database Cold Failover. • Better storage and server resource utilization. • Instance caging and ASM.

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Agenda • Overview • Deployment • High Availability • Consolidation 8 • Demo

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Create RAC One Node 11.2.0.2 database • Install and configure 11.2.0.2 GI on all nodes. • Install 11.2.0.2 DB software by selecting RAC One in all nodes. • Create a RAC One Node database using DBCA. 9 • Create service – setup TAF or FAN correctly.

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Database installer 11.2.0.2 10

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Database Configuration Assistant 11.2.0.2 11

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Typical deployment Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 12 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3

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Agenda • Overview • Deployment • High Availability • Consolidation 13 • Demo

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High availability • Oracle RAC One Node targets the failover market • But differs from other cold failover solutions. • Install rolling patches (no downtime). • Easy and online scale-out to multi-node RAC. 14 • RAC includes RAC One Node features. • OMotion - online migration of a database.

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High availability • RAC One Node Support in Grid Control 11.1 [ID 1308490.1]. • Oracle RAC One Node is supported with Oracle Data Guard 11.2.0.2 • Dataguard Broker is RAC One aware. 15 • Dataguard Broker is RAC One aware. • Oracle RAC One Node is supported with Oracle Goldengate [1320094.1].

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Online Database Relocation Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 Client connections 16 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3

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Online Database Relocation Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 Client connections DB2 instance 2 Omotion 17 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 Omotion

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Online Database Relocation Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 New client connections DB2 instance 2 Client connections Omotion 18 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 Omotion

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Online Database Relocation Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 New client connections DB2 instance 2 Client connections Omotion 19 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 Omotion

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Online Database Relocation Server1 DB1 DB2 Server 2 DB3 instance 1 instance 1 instance 2 New client connections DB2 instance 2 Omotion 20 DB1 DB2 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 Omotion

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Online Database Relocation Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 21 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 22 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 Apply patch 23 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 DB2 instance 1 Omotion 24 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 Omotion

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 DB2 instance 1 Omotion New client connections 25 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 Omotion

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 2 DB2 instance 1 Omotion New client connections 26 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 Omotion

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 DB2 instance 2 DB2 instance 1 Omotion New client connections 27 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 Omotion

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Online DB Patching Server1 DB1 Server 2 DB3 instance 1 instance 2 DB2 instance 1 Client connections Apply patch 28 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB_HOME 2 DB2 DB_HOME 2

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Database Cold Failover Server1 DB2 Server 2 DB3 instance 1 instance 2 Client connections 29 DB2 DB3 Shared storage ASM DB_HOME 2 DB_HOME 3

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Database Cold Failover Server1 DB2 Server 2 DB3 instance 1 instance 2 Client connections 30 DB2 DB3 Shared storage ASM DB_HOME 2 DB_HOME 3

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Database Cold Failover Server1 DB2 Server 2 DB3 instance 1 instance 2 Client connections DB2 instance 1 31 DB2 DB3 Shared storage ASM DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Database Cold Failover Server1 DB2 Server 2 DB3 instance 1 instance 2 DB2 instance 1 Client connections 32 DB2 DB3 Shared storage ASM DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Online upgrade to RAC Server1 DB1 Server 2 DB3 instance 1 instance 2 DB2 instance 1 Client connections Use srvctl to upgrade to RAC 33 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2

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Online upgrade to RAC Server1 DB1 Server 2 DB3 instance 1 instance 2 DB2 instance 2 DB2 instance 1 RAC Client connections 34 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 RAC

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Online upgrade to RAC Server1 DB1 Server 2 DB3 instance 1 instance 2 DB2 instance 2 DB2 instance 1 RAC Client connections New client connections 35 DB1 DB3 Shared storage ASM DB_HOME 1 DB_HOME 2 DB_HOME 3 DB2 DB_HOME 2 DB2 DB_HOME 2 RAC

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Agenda • Overview • Deployment • High Availability • Consolidation 36 • Demo

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Better consolidation • GI and ASM are running all the time on all nodes • Storage capacity is shared. • Disk groups are mounted all the time on all nodes • No volume migration during relocation or failover. • Instance caging 37 • Instance caging • Better workload and resource utilization. • Dynamic parameter (CPU_COUNT). • Two approaches - over-provisioning and partitioning. • RON can be admin or policy managed database

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Instance caging - partitioning Server1 DB1 DB2 Server 2 DB3 38 DB1 DB2 DB3 Shared storage DB1 DB2 8 CPUs 4 CPUs

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Instance caging - over-provisioning Server1 DB1 DB2 Server 2 DB3 39 DB1 DB2 DB3 Shared storage DB1 DB2 8 CPUs 8 CPUs

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Oracle RAC One Node 40

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Conclusion • Oracle RAC One Node pros: • Single vendor solution. • Faster Failover of database. • Easy and online scale-out to multi-node RAC. • Tolerate planned and unplanned outages. 41 • Tolerate planned and unplanned outages. • Lower license cost than full RAC. • Oracle RAC One Node cons: • Several MOS notes and no docs! • Not available to SE. • Almost ½ from RAC price.

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Q&A Thank you! 42 Thank you! Email: s.gyurov@cnsys.bg Blog: http://sve.to Twitter: sgyurov