Elasticity and Management Module

1. 1© 2016 Amazon Web Services, Inc. or its affiliates. All rights reserved.
Module 4: Elasticity and
Management
AutoScaling, Elastic Load Balancer,
CloudWatch, Trusted Advisor

2. Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Typical Weekly Traffic to Amazon.com

3. Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Typical Weekly Traffic to Amazon.com
Provisioned Capacity

4. November Traffic to Amazon.com
November

5. November Traffic to Amazon.com
Provisioned Capacity
November

6. November Traffic to Amazon.com
76%
24%
Provisioned Capacity
November

7. November Traffic to Amazon.com
November

8. Auto Scaling lets you do this!

9. 9© 2016 Amazon Web Services, Inc. or its affiliates. All rights reserved.
Auto Scaling
Scale your Amazon EC2 capacity
automatically
Well-suited for applications that experience
variability in usage
Available at no additional chargeAuto
Scaling

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Trio of Services
Latency
Utilization
CloudWatchAuto Scaling
Elastic Load
Balancing
Auto Scaling group
Execute AS
Policy

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Auto Scaling Benefits
Better Cost
Management
Better
Availability
Better Fault
Tolerance

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Launch Configurations
A launch configuration is a template that an Auto
Scaling group uses to launch EC2 instances.
When you create a launch configuration, you can
specify:
 AMI ID
 Instance type
 Key pair
 Security groups
 Block device mapping
 User data

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Auto Scaling Groups
Contain a collection of EC2 instances that share
similar characteristics.
Instances in an Auto Scaling group are treated as a
logical grouping for the purpose of instance scaling
and management. Auto Scaling group
Minimum size
Desired capacity
Maximum size
Scale out as needed

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Dynamic Scaling
You can create a scaling policy that uses
CloudWatch alarms to determine:
 When your Auto Scaling group should scale out.
 When your Auto Scaling group should scale in.
You can use alarms to monitor:
 Any of the metrics that AWS services send to Amazon
CloudWatch.
 Your own custom metrics.

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Elastic Load Balancing
Distributes traffic across multiple instances
Supports health checks to detect unhealthy
Amazon EC2 instances
Supports the routing and load balancing of
HTTP, HTTPS, and TCP traffic to Amazon EC2
instances
Elastic Load
Balancing

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Using Two Availability Zones
Availability Zone 1
AWS Region
Internet
gateway
Availability Zone 2
Web
server
Web
server
Elastic load
balancer
Public
Subnet 1
Public
Subnet 2

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Elasticity Demo

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Amazon CloudWatch
A monitoring service for AWS cloud resources and
the applications you run on AWS
Visibility into resource utilization, operational
performance, and overall demand patterns
Custom application-specific metrics of your own
Accessible via AWS Management Console, APIs,
SDK, or CLI
Amazon
CloudWatch

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Amazon CloudWatch Facts
Monitor other AWS resources
View graphics and statistics
Set Alarms

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Amazon CloudWatch Architecture
AWS resources
that support
CloudWatch
Amazon
CloudWatch
Amazon
CloudWatch
Alarm
SNS Email
Notification
Auto Scaling
Available
Statistics
Statistics
Consumer
AWS Management
Console
CloudWatch Metrics
CPUUtilization
StatusCheckFailed
Custom
Application-
Specific Metrics
PageViewCount

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Supported AWS Services
Auto Scaling
Amazon
CloudFront
Amazon CloudWatch
Amazon
CloudSearch
Amazon
DynamoDB
Amazon EC2
Amazon
ElastiCache
Amazon EBS
Elastic Load
Balancing
Amazon EMR
Amazon Kinesis Amazon EC2
Container Service
AWS OpsWorks
Amazon Redshift
Amazon RDS
Amazon
Route 53
Amazon SNS
Amazon
SQS
Amazon
SWF
Amazon S3AWS Storage
Gateway
Amazon
WorkSpaces
Amazon Machine
Learning
AWS Lambda AWS WAF

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AWS Trusted Advisor
Best practice and recommendation engine.
Provides AWS customers with performance and
security recommendations in four categories: cost
optimization, security, fault tolerance, and
performance improvement.
AWS Trusted
Advisor

23. 23© 2016 Amazon Web Services, Inc. or its affiliates. All rights reserved.
Cost Optimization
Amazon EC2 Reserved Instance Optimization
Low Utilization Amazon EC2 Instances
Idle Load Balancers
Underutilized Amazon EBS Volumes
Unassociated Elastic IP Addresses
Amazon RDS Idle DB Instances

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Security
Security Groups
AWS IAM Use
Amazon S3 Bucket Permissions
MFA on Root Account
AWS IAM Password Policy
Amazon RDS Security Group Access Risk

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Fault Tolerance
Amazon EBS Snapshots
Load Balancer Optimization
Auto Scaling Group Resources
Amazon RDS Multi-AZ
Amazon Route 53 Name Server Delegations
ELB Connection Draining

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Performance Improvement
High Utilization Amazon EC2 Instances
Service Limits
Large Number of Rules in EC2 Security Group
Over Utilized Amazon EBS Magnetic Volumes
Amazon EC2 to EBS Throughput Optimization
Amazon CloudFront Alternate Domain Names

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Trusted Advisor Demo