메가존과 AWS가 공개하는 AWS 비용 최적화 전략-메가존 김성용 매니저 및 AWS 이우상 매니저:: AWS Cloud Track 3 Gaming

메가존과 AWS가 공개하는 AWS 비용 최적화 전략
김성용 매니져, MegaZone
이우상 매니져, AWS

• Basics
• Structure your Strategy
• Conclusion

Before Basics..
On and Off Fast Growth
Predictable peaksVariable peaks
WASTE (비용 낭비)
CUSTOMER DISSATISFACTION (고객 이탈 발생)

Before Basics..
Amazon EBS standa
rd volume prices are
lowered up to 50%
for both storage and
I/O requests.
January 21, 2014
50%
Amazon is reducing
prices for Amazon
ElasticCache cache
nodes by an average
of 34%.
March 26, 2014
34%
Amazon S3: We are
reducing prices for
Standard and Reduced
Redundancy Storage, by
an average of 51%.
March 26, 2014
51%
1. Do Nothing
50 times since our inception in 2006. Recent price drops included…

Before Basics..
2. Do Almost Nothing
CloudWatch, Trusted Advisor, Start Small

Before Basics..
3. Do Iterating Architecture Optimization

Basics
4. 7 tips for Architecture Optimization
• Turn off when not using (working 12 hours vs 24 hours)
• Use Auto Scaling
• Use Reserved Instance (1Y 35% ↓, 3Y 75% ↓)
• Use Spot Instance (up to 90% ↓)
• Use S3 options (S3, IA, Glacier → 3￠, 1.3 ￠, 0.7 ￠)*
• Use AWS Dynamo DB (dynamic provisioning)
• Remove un-needed component and utilize
AWS managed services
* Based on N. Virginia Region, for more details visit : https://aws.amazon.com/s3/pricing/?nc1=h_ls

Structure your Strategy
1. Have visibility on your cost
2. Optimize AWS usage
3. Use Reserved Instance

Structure your Strategy
1. Have visibility on your cost
1. Budgets
2. Cost Explorer
3. Cost and Usage Report
2. Optimize AWS usage
1. Trusted Advisor
2. Right Sizing
3. Elasticity
3. Use Reserved Instance

Have visibility on your cost
AWS BUDGETS
• Define and track budgets for your AWS costs,
forecast your AWS costs
• Budgets takes place on a fine-grained basis,
with filtering or customization based on Availability Zone,
Linked Account, API operation, Purchase Option
(e.g. Reserved), Service, and Tag.

AWS BUDGETS

AWS Cost Explorer
• Visualize your AWS cost
• Filters your AWS cost by AWS service, Linked Account,
Tag, month..
• Use same data as Detailed Billing Reports use

AWS Cost Explorer
• Log in to your AWS web console, click Cost Explorer
in Billing section

AWS Cost Explorer

AWS Cost Explorer – custom view

AWS Cost and Usage Report
• Cost and Usage Reports that provide you
with comprehensive data about products, pricing, and usage.
• Easily upload the reports to Amazon Redshift and
then run queries against the data using business
intelligence and data visualization tools including
Amazon QuickSight.

AWS Cost and Usage Report & QuickSight !

Optimize AWS usage
AWS Trusted Advisor
• Trusted Advisor inspects your AWS environment and
finds opportunities to save money, improve system
performance and reliability, or help close security gaps.
• Since 2013, customers have viewed over 2.6 million best-
practice recommendations and realized over
$350 million in estimated cost reductions.

Optimize AWS usage
AWS Trusted Advisor – perspective of Cost Savings*
Checking Points
Amazon EC2 Reserved Instances Optimization
Low Utilization Amazon EC2 Instances
Idle Load Balancers
Underutilized Amazon EBS Volumes
Unassociated Elastic IP Addresses
Amazon RDS Idle DB Instances
* available vis Business and Enterprise Support
：: : No issue
： Investigation needed
： Immediate action needed

Optimize AWS usage
AWS Trusted Advisor – perspective of Cost Savings
Checking Points Remark
Amazon EC2 Reserved
Instances Optimization
calculates an optimal number of Partial Upfront Reserved Instances.
Low Utilization Amazon
EC2 Instances
alerts you if the daily CPU utilization was 10% or less and network I/O was 5 MB or less
on 4 or more days, out of total 14 days
Idle Load Balancers Checks your Elastic Load Balancing configuration for load balancers that are not
actively used
Underutilized Amazon
EBS Volumes
If a volume remains unattached or has very low write activity (excluding boot volumes)
for a period of time, the volume is probably not being used.
Unassociated Elastic IP
Addresses
Checks for Elastic IP addresses (EIPs) that are not associated with a running Amazon
Elastic Compute Cloud (Amazon EC2) instance.
Amazon RDS Idle DB
Instances
Checks the configuration of your Amazon Relational Database Service (Amazon RDS)
for any DB instances that appear to be idle.

Optimize AWS usage
Right Sizing
• Trusted Advisor determines if 10% or less CPU utilization
% and network I/O was 5 MB or less on 4 or more days in
14 days to identify underutilized EC2
• Metrics can be Low CPU, Low Bandwidth, Low I/O,
Days Alive, Estimated Cost, Name tag

AWS 프리미어 파트너 –
메가존 김성용 매니저를 소개합니다

클라우드 전문기업 메가존
1998년 설립, 19년간의 비즈니스 이력
본사 : 대한민국 서울
지사 : 베트남, 하노이
글로벌 파트너쉽 : + 20
320여명의 임직원

AWS와 함께하는 역사
2012 03 국내 최초 AWS 파트너십 체결
2015 04 국내 최초 및 세계 유일의 AWS 인증 서포트 파트너
2015 10 국내 최초 AWS 프리미어 파트너
2015 12 국내 최초 Marketing & Commerce Competency 파트너
2015 12 엔터프라이즈 서포트 계약 체결

국내 최초 엔터프라이즈 서포트 제공
주요 혜택 :
 수석 클라우드 지원 엔지니어
 어플리케이션 아키텍쳐 리뷰
 기술 지원 엔지니어(TAM) 일대일 지원
 고객 서비스 24/7/365 서포트
엔터프라이즈 서포트란?
“AWS 서포트 중 최상위 서포트 등급”
개발자 비즈니스 엔터프라이즈
보통
< 12시간
긴급
< 1시간 심각
< 15 분
서포트 등급별 최소응답시간

비용절감을 위한 검증된 방법과 자료가 이미 많은데,
왜 어려울까요?
Chapter I.

1. 관리대상 과다
이미 관리 중인 IDC, AWS & 솔루션
 서버, 네트워크, 보안, 라이선스…
EC2 Instances
 1인 당 최소 1대 ~ 최대 1,000대
EBS
 1인 당 최소 1대 ~ 최대 600대

2. 관리방법 과다
 CPU Util%
 Memory usage
 EBS I/O
 Network I/O
 탄력성 (Elasticity)
 RI 활용률
 앞으로의 비즈니스 예측

3. 관리프로세스 확립의 어려움
 분석 리소스 확보 및 가시화
 이슈대상 정의 & 분석방법 정의
 이슈를 어떻게 해결할 것인가?
 해결책을 누가 어떻게 집행할 것인가?
 집행결과를 어떻게 보고할 것인가?

4. 이걸 다 조합하면..
 33 개 변수
 54 개 하위 변수

여기까지 검토했을 때의 표정

메가존과 AWS가 공개하는 AWS 비용 최적화 전략-메가존 김성용 매니저 및 AWS 이우상 매니저:: AWS Cloud Track 3 Gaming

Chapter II.
 CloudWatch와 빌링데이터를 활용한
이슈 탐지 및 해결책 도출하기
 할 수 있는 것 부터 하자!

Sample Case Study – “A 마케팅 회사”
“Right Sizing”

0
0.2
0.4
0.6
0.8
1
1.2
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Right-Sizing
CPU : 100%
= 인스턴스 스펙다운
실제
CPU 사용률 :
다운그레이드
가능
0 ~ 25%

0
0.2
0.4
0.6
0.8
1
1.2
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Right-Sizing
C3.xlarge
= 인스턴스 스펙다운
M3.large
Saving 36 %

=
C3.xlarge  m3.large
Right-Sizing : How to Convert
항목 ECU Ram. NetWork Price
C3.xlarge 14 7.5 Moderate 0.21
실제
사용량
3.5 0.5 Moderate 0.21
검색 조건:
ECU >= 3.5,
Ram >= 0.5,
Price < 0.21
= m3.largeM3.large 6.5 7.5 Moderate 0.133
36% 비용절감

Sample Case Study
“Right Sizing + Auto Scaling”

0
2
4
6
8
10
12
14
16
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Right Sizing + Auto Scaling
C3.xlarge, 24hrs
Auto-Scaling
+
Right Sizing
Without
Auto-Scaling

0
2
4
6
8
10
12
14
16
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
C3.xlarge, 24hrs
Saving 66%
M3.mid, 24hrs
M3.mid, 1hr

66% 비용 절감
“Right Sizing + Auto Scaling”
Sample Case Study
C3.xlarge
0시~20시
21시~22시
23시
사용시간
사용량
Optimization TO-BE
ECU
< 3.0
= 3.7
< 3.0
Right-Sizing
Right-Sizing
Auto Scaling
Right-Sizing
M3.mid x 1
M3.mid x 2
M3.mid x 1
3
3 + 3
3
5.04 1.68
Cost (Daily)ECUAS-IS

Sample Case Study
“Right Sizing + Auto Scaling + RI”

C3.xlarge, 24hrs
Saving 66%
M3.mid, 24hrs
M3.mid, 1hr
0
2
4
6
8
10
12
14
16
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Right Sizing + Auto Scaling + RI
C3.xlarge, 24hrs
Saving 76%
M3.mid, 24hrs
+ RI
M3.mid, 1hr
0
2
4
6
8
10
12
14
16
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

76% 비용 절감
“Right Sizing + Auto Scaling + RI”
Sample Case Study
C3.xlarge
0시~20시
21시~22시
23시
사용시간
사용량
Optimization TO-BE
ECU
< 3.0
= 3.7
< 3.0
Right-Sizing(R)
Right-Sizing(R)
Auto Scaling
Right-Sizing(R)
M3.mid x 1
M3.mid x 1
M3.mid x 1
M3.mid x 1
3
3 + 3
3
5.04 1.2
Cost (Daily)ECUAS-IS

C3.xlarge  M3 Cost Optimization Plans
Right Sizing
Auto-Scaling
RI
Saving
Plan 1 Plan 3 Plan 4 Plan 5
v v v
v v
v v v
30% 54% 66% 76%
Difficulty EASY Normal Hard Hard
Plan 2
v
36%
Normal

“이걸 언제 다 하지... 좀 더 간편하게
관리할 수 있으면 좋겠다.”
“Hyper Ops”

Reference : Right-Sizing
A 게임사
$0
$2,000
$4,000
$6,000
$8,000
$10,000
$12,000
Before
After
49개 인스턴스 Right-Sizing.
$ 17,791.56, 34% 절감효과

Reference : RI Optimization
C3 M3 C4 M4 M1 C1 I2 D2 C4 t2
Ondemand 100%
AS-IS
RI 100%
 누적 성과와 미래 성과 분석
 계정, 인스턴스별로 ODI & RI 현황 파악
 RI를 통한 누적절감비용 보고 (월간 레포트)
 Ondemand -> RI 전환 시 추가 절감비용 시뮬레이션
 만료 예정 RI Alarm
B 게임사

Reference : RI management
 휴면 RI 색출
 휴면 원인 탐색
 휴면 상태를 활동상태로 전환
 RI 통합 & RI 분할 & AZ 변경 & VPC전환
 Saved Up To $20K
C 게임사
52,080
47,040
52,080
47,329
44,640
43,200
44,640
42,408 42,620 42,404
41,040
41,353
36,843
39,795
37,408 37,944
36,720
37,944
40,288
42,620 42,385
41,040
30,000
35,000
40,000
45,000
50,000
55,000
1 2 3 4 5 6 7 8 9 10 11
HOUR
MONTH
구매된 시간
사용된 시간

Use Reserved
Reserved Instance Pricing History
• AWS’s historical price drop
• History confirms that
on-demand price
does not go lower
than reserved instance price
* Source : cloudability.com

Use Reserved
* Source : cloudability.com

Use Reserved & Spot Instance
Overall Process
• Attach tag to all EC2s
• Monitor your usage / Alarm
• Find and remove underutilized resources
• Find right instance type
• Optimize using RI
• Define governance / Assign an owner

메가존과 AWS가 공개하는 AWS 비용 최적화 전략-메가존 김성용 매니저 및 AWS 이우상 매니저:: AWS Cloud Track 3 Gaming

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