Oracle Active Data Guard 深度解析：关键架构及最新进展 [LRN3177].pdf

1、OracleActive Data GuardDeep Dive,Key Architectures,and AdvancesLudovico CaldaraSenior Principal Product Manager,OracleNitin KarkhanisKetan KothariSoftware Development Senior Director,OracleTechnical Fellow and Architect,FedExOracle Data GuardThe best disaster recovery solution for the Oracle AI Data

2、base3Copyright 2025,Oracle and/or its affiliatesPRIMARYSTANDBYAPPLICATIONFAST-STARTFAILOVEREnd-to-end validationDisaster Recovery Standby database(s)ready to take over End-to-end validation:corruptions are not replicated Synchronous or asynchronous replication Zero or near-zero data loss protection

3、Automatic failover,low Recovery Time Objective(RTO)Testing and cloningThe standby database can be temporarily open read/writeThe standby database can be used as a source for clonesOBSERVERSYNC/ASYNCREAD/WRITEOracle Data Guard 26aihas come a long wayKey features of Oracle Active Data Guard 26aiFaster

4、 role transitions in Oracle Data Guard 26ai5Copyright 2025,Oracle and/or its affiliates0102030405060708090SWITCHOVERFAILOVERsecondsSMALL19c26aiUP TO400%FASTER0102030405060708090100SWITCHOVERFAILOVERsecondsLARGE19c26aiSystemPDBsData FilesServicesRedo RateSMALL2-node Exadata RAC5501060 MB/sLARGE4-node

5、 Exadata RAC1250012100 MB/sRead more:BI-DIRECTIONAL CDB-LEVELREDO TRANSPORTOracle Data Guard per Pluggable Database6Copyright 2025,Oracle and/or its affiliatesPRIMARYCDBPRIMARYCDBPDB1PRIMARYPDB2STANDBYPDB3STANDBYPDB1STANDBYPDB2PRIMARYPDB3PRIMARYREDOLOGSREDOLOGSAPPLYAPPLYAPPLYPER-PDB SWITCHOVERAND FA

6、ILOVERProtection at the PDB levelRedo transport is shared Consolidation benefitsRedo apply is dedicated for each PDBIndividual PDB switchover and failoverRead-Only Standby PDBsStandby PDBs can be opened read-only OffloadingRead more:Setup guide:Missed the key announcements at Oracle CloudWorld 2023