HA(On-Premise) VS AWS RDS for Oracle ( Multi-AZ) [ Multi-AZ ] 1. Main Purpose is high avaiilability 2. Non-Aurora : Synchronous replication 3. Non-Aurora : automated backups are taken from standby 4. Always span at least two Availability Zones with a single region AWS RDS For Oracle 전제 1) 5분마다 Transaction Log 백업 2) 하루 한번 Snapshot Backup ( 복구 가능 셋 ) Snapshot 은 OS + DB 에 대한 Disk Backup 이며, 수행 전, B..