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S E O U L | M A Y 4 , 2 0 2 3

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AWS RDS
Director
ETEVERS

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1. Amazon DB Services
2. DB Migration Steps
3. DB Migration Considerations
4. DB Migration Tools
5. DB Migration Cases
Agenda

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1. Amazon DB Services

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1. Amazon DB Services
Amazon Relational Database Service(RDS)
• ,
•
AMAZON RDS

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1. Amazon DB Services
Amazon Aurora(Aurora)
• MySQL PostgreSQL ,
• DB
AMAZON AURORA

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1. Amazon DB Services
비교 항목 RDS Aurora
지원 DBMS
MySQL, PostgreSQL, MariaDB,
Microsoft SQL Server, Oracle
MySQL, PostgreSQL
성능 상급 성능
최상급 성능
* 유사 하드웨어에서 처리량(throughput)이
Stock MySQL 대비 최대 5배
안정성 상급 안정성
최상급 안정성
* 특화된 스토리지 아키텍처 디자인 + 지속적인 백업
아키텍처
스토리지 확장성
64 TiB
* SQL Server 경우 16 TiB 까지 확장 가능
128 TiB 까지 확장 가능
가격
인스턴스 유형
스토리지 볼륨 크기
인스턴스 유형
스토리지 실사용 크기
IO 요청
AMAZON RDS OR AURORA ?

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1. Amazon DB Services
• 2022 Region DB
• Amazon RDS OS Database
• Oracle SQL-Server
✓ AWS AWS
✓ (Custom)
기능 및 책임 EC2
RDS
Custom
RDS
Application Customer Customer AWS
Availability Customer * Shared AWS
DB Backup Customer * Shared AWS
DB SW Customer * Shared AWS
OS Customer * Shared AWS
Server AWS AWS AWS
AMAZON RDS CUSTOM FOR ORACLE

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2. DB Migration Steps

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2. DB Migration Steps
Amazon RDS
Assess Plan Test
✓ DB
•
• /
•
•
• ,
✓ AWS DB
✓ , ,
,
•
•
• /
•
•
✓
•
•
•
• 2~3
✓
DB
•
•
•
•
•
•
GENERAL STEPS FOR DB MIGRATION
Execute

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2. DB Migration Steps
Assess
DB Server
HW or VM 스펙
벤더, 모델(연도) / CPU 스펙 / Memory 스펙 / NIC
스펙, 수 / 내부 Disk 스펙, 수 / 내부 Raid 구성
외장 스토리지 스펙
벤더, 모델(연도) / Memory 스펙 / 인터페이스
스펙, 수 / Disk 스펙, 수 / Raid 구성 / 추가 기능
OS 벤더, 명, 버전
리소스(CPU, Memory, Network, IO)
사용량
평균, 피크, 사용 패턴(그래프)
DBMS
DBMS 버전, 기능 버전 (Ent, Std 등)
옵션 기능 사용 현황 (예: Partitioning, RAC)
라이센스 현황
스키마 및 데이터 정보
스키마 정보 / 데이터 정보, 크기 / 인덱스 정보, 크기 /
아카이브 및 로그 정보, 크기 / Table 수 / Query 수
DB Server
DB 의 업무 구분 예: 쇼핑 상품 60%, 카탈로그 30%, 기타 10%
DB 의 업무 종류 예: OLTP 70%, 새벽 배치 처리 30%
Read/Write 비율 예: Read: 70%, Write 30%
Transaction 처리량 일 단위, 시간 단위
데이터 및 로그 발생량 일 단위, 시간 단위
연계된 모든 App 서버
서버 수, 연계 방식, DB 관련 설정 내용
(커넥션 수 등)
연계된 모든 DB 및 연계 서버
업무 종류, 연계된 DB 및 연계 서버 스펙, 수,
연계 방법
DBMS
설치된 모든 SW: 벤더, 명, 버전 (보안 SW 포함)
ACCESS INSPECTION LISTS

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3. DB Migration Considerations

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3. DB Migration Considerations
AMAZON RDS CUSTOM FOR ORACLE
As-Is,
To-Be
3rd SW
Amazon RDS

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4. DB Migration Tools

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4. DB Migration Tools
OS, DB
✓ OS (scp, sftp )
✓
✓
✓ OS/ , Oracle DB ,
✓
OS COMMANDS
COPY
Control
File
Parameter
File
Data
File
Temp
File
Redo
Log File
Archive
Log File

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4. DB Migration Tools
DBMS
✓ OS/
✓ DB
✓ character set
✓
✓
✓ DB
✓ DB
Oracle Data Pump
DBMS PROVIDED TOOLS
MySQL Dump

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4. DB Migration Tools
CDC DB
✓ OS/
✓ DB
✓
✓ , DB,
✓ Ongoing
✓
✓ DB
AWS Database
Migration Service
(AWS DMS)
CHANGE DATA CAPTURE TOOLS

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5. DB Migration Cases

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5. DB Migration Cases
A : MS-SQL AWS MySQL RDS
Summary
✓ AWS (SCT, DMS) MS-SQL MySQL
✓ AWS SCT DMS
✓ DB
✓ AWS SCT, DMS DB
DB /
(* , , )
✓ MySQL MS-SQL dbo
✓
✓
ONPREMISE MS-SQL TO AMAZON RDS MYSQL

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5. DB Migration Cases
B : Shop Oracle RAC DB AWS RDS
✓ AWS RAC HA
Active RAC
DB
✓ :
VPN
✓ CDC
✓
ONPREMISE ORACLE DB TO AMAZON RDS ORACLE
Summary
✓ CDC
✓ DB Sync
✓
✓ AWS RDS RAC
✓ Top ,

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