AWS - Key Components Limits

Hi,

 

Sharing crunch of AWS various courses which will work as a key for exam success.

This has been accumulated over a period of time and will keep updating this post.

 

Port:

·         SSH: 22

·         RDP: 3389

·         HTTP: 80

·         HTTPS: 443

·         MySQL: 3306

·         Redshift: 5439

·         MS SQL: 1433

 

ELB

·         Supported Protocols: HTTP/HTTPS/TCP/SSL

·         Supported Ports: 25, 80, 443, 1024 - 36635

 

Compute

EC2

 

·         Max Number of Tags – 10 Per EC2 Instance

·         How many regions are there on the AWS platform currently - 11

·         Total Regions Supported for EC2 - 9

·         EC2 Instance Limits (Per Region)

·         On-Demand : 20

·         Reserved: 20

·         SPOT – No Limit

 

Auto Scaling

·         Default Cooling Period – 5 mins

 

Elastic Bean Stalk

·         Default Limit

·         Applications: 75

·         Application Version: 1000

·         Environments: 200

 

Storage

S3

 

·         Per AWS A/c S3 Buckets – 100 (Call AWS to increase limit)

·         File Size: 1 Byte – 5 TB

·         Object/File Size in Single PUT – 5 GB

·         Multipart Upload – Greater than 100 MB

 

Glacier

·         1000 Vaults – Per A/c Per Region

·         No Max Limit to the total amount of data.

·         Individual Archives Limit: 1 Byte – 40 TB

·         Object/File Size in Single PUT – 4 GB

 

Storage Gateway

·         Gateway Stored Volume – 16 TB, 32 Volumes: 512 TB

·         Gateway Cached Volume – 32 TB, 32 Volumes: 1 PB

·         Virtual Tape  – 1 PB (1500 Virtual Tapes) (Takes 24 Hours for retrieval)

 

Import/Export

·         Max Device Capacity – 16 TB

·         Snowball - Max Device Capacity – 50 TB

 

CloudFront: (Can be Writable)

·         1000 – Request Per Second

·         Max File Size that can be delivered thru CloudFront – 20 GB

·         TTL – 24 Hrs (86400 secs)

·         Cannot be - RDS, Glacier

·         Can be – S3, EC2, ELB, Route53

 

Database

 

 

RDS:

·         Limit – 40 RDS Instances

·         Max DB on Single SQL-Server Instance – 30

·         Max DB on Single Oracle Instance – 01

·         RDS Backup Retention Period – 1 - 35 Days

·         Read-Replicas – 05

·         MySQL DB Size – 6 TB

·         Maximum RDS Volume size using RDS PIOPS storage with MySQL & Oracle DB Engine  - 6 TB

·         Maximum PIOPS capacity on an MySQL and Oracle RDS instance is 30,000 IOPS (Default)

·         Maximum size for a Microsoft SQL Server DB Instance with SQL Server Express edition – 10 GB (SA Mega Quiz #20)

 

Dynamo DB

·         Storage – No Limit

·         Single Item Size (Row Size): 1 – 400 KB

·         Local/Global Secondary Index – 05 per Table

·         Streams – Stored for 24 Hours only.

·         Maximum Write Thruput – Can go beyond 10,000 capacity units, but contact AWS first.

·         Projected Non-Key Attributes – 20 Per Table

·         LSIs - Limit the total size of all elements (tables and indexes) to 10 GB per partition key value. (GSI does not have any such limitations)

·         Tags: 50 Tags Per DynamoDB Table

·         Triggers for a Table - Unlimited

 

RedShift

·         Block Size – 1024 KB

·         Maintain 3 copies

·         Compute Node: 1 – 128

 

Aurora

·         Maintain 6 copies in 3 AZs

 

ElastiCache

·         Reserved Cache Nodes – 20

 

Networking

 

ELB:

·         Allowed Load balancer : 20

·         Port Supported: HTTP, HTTPS, SSL, TCP

·         Acceptable ports for both the HTTPS/SSL and HTTP/TCP connections are 25, 80, 443, and 1024-65535

 

Per Region

·         05 - VPCs

·         05 - EIP

·         05  – Virtual Private Gateway

·         50 - VPN Connections

·         50 – Customer Gateway

 

Per VPC

·         01 - Internet Gateway

·         01 – IP Address Range

·         200 – Subnets

·         20 - EC2 Instances (Default)

 

Per Subnet

·         01 – AZ

·         01 - ACL

 

Notes:

·         An instance retains its Private IP and persist across starts and stops

·         Assign multiple IP addresses to your instances

·         EIP is associated with your AWS account and not a particular instance. It remains associated with your account until you explicitly release it.

 

Route53

·         Number of domains you can manage using Route 53 is 50  (however it is a soft limit and can be raised by contacting AWS support)

 

Management

 

Cloud Watch

·         Logs – Unlimited/ Indefinitely

·         Alarms – 2 Weeks (14 Days)

·         Metrics – 2 Weeks (14 Days)

·         For more, use API – GetMetricStatistics or some third party tools

·         EC2 Metrics Monitoring

·         Standard – 5 Mins

·         Detailed – 1 Min

 

·         Custom Metrics Monitoring – Minimum 1 Min

 

 

Cloud Formation

·         Templates – No Limits

·         Stack – 200 Per A/c

·         Parameters – 60 per Template

·         Output – 60 per Template

·         Description Field Size – 4096 Characters

 

Cloud Trail

·         5 Trails – Per Region

·         Deliver Log Files – Every 5 mins

·         Capture API Activity – Last 7 Days

 

 

OpsWorks

·         40 Stacks

·         40 Layers per stack

·         40 Instances per stack

·         40 - Apps per stack

 

Security

 

·         Roles: 250 Per AWS Account

·         KMS

·         Master Keys – 1000 Per AWS A/c

·         Data Key – No Limit

·         Resource Base Permission:

·         S3, Glacier, EBS

·         SNS, SQS

·         Elastic Bean Stalk, Cloud Trail

 

Analytics

 

EMR:

·         EC2 Instances Across All clusters - 20

 

Application

 

SQS:

·         Visibility Timeout – 30 Secs (Default) (Otherwise 12 hours) Value must be between 0 seconds and 12 hours.

·         Retention Period – 4 days (Default). Can be set form 1 min to 2 Weeks (14 Days) Value must be between 1 minute and 14 days.

·         Max Long Polling Timeout – 20 Secs Value must be between 0 and 20 seconds.

·         Message Size – 256 KB Value must be between 1 and 256 KB.

·         Number of Queues – Unlimited

·         Number of messages per queue – Unlimited

·         Queue name: 80 characters

 

SES:

·         SES Email Size – 10 MB (including Attachments)

·         SES Recipients – 50 for every message

 

SNS:

·         Topic – 1,00,000 Lakh (Per A/c)

·         Subscription – 10 Million Per Topic (Per A/c)

·         TTL – 04 Weeks

 

SWF:

·         Retention Period – 1 Year

·         Max workflow execution – 1 Year

·         History of Execution – 90 Days Max

·         Max  Workflow and Activity Types – 10,000

·         Max Amazon SWF domains – 100

·         Max open executions in a domain – 1,00,000

 

Elastic Encoder

·         Jobs – 10k Per Pipeline

 

Hope this helps.

Keep Blogging!!!

 

Regards,

Arun Manglick