1. The most likely reason your team member is unable to attach the EBS volume to an EC2 instance `in us-east-1b` is that EBS volumes are tied to a specific Availability Zone (AZ) upon creation. Since the volume was originally attached to an EC2 instance in us-east-1a, it is restricted to that AZ and cannot be directly attached to an instance `in us-east-1b`. us-east-1a์์์ EC2 ์ธ์คํด์ค๋ฅผ ์ข
๋ฃํ์ฌ, ์ด ์ธ์คํด์ค์..
1. EBS Volume Types1-1. What is EBS Volume Typesโถ EBS Volumes come in 6 typesgp2 / gp3 (SSD): General purpose SSD volume that balances price and performance for a wide variety of workloads.io 1 / io 2 Block Express (SSD): Highest-performance SSD volume for mission-critical low-latency or high-throughput workloadsst 1 (HDD): Low cost HDD volume designed for frequently accessed, throughput-intens..
1. Amazon EBS ๋ธ๋ญ ์คํ ๋ฆฌ์ง Ephemeral → EC2 Instance Store (์ธ์คํด์ค ์ข
๋ฃ ์ ๋ฐ์ดํฐ ์ฌ๋ผ์ง)Persistent → Amazon EBS (๋ธ๋ก ์ ์ฅ), Amazon S3 (๊ฐ์ฒด ์ ์ฅ) ์๋ง์กด ์ ์ฅ์ ์ค์ ๋ธ๋ญ ์ ์ฅ์(Amazon Block Storage)๋ผ๊ณ ํ๋ฉด ๋ณดํต Amazon Elastic Block Store (EBS)๋ฅผ ์๋ฏธํ๋ค. ๋ธ๋ก ์คํ ๋ฆฌ์ง ์๋น์ค๋ผ๊ณ ๋ถ๋ฅด๊ธฐ๋ ํ๋ค. ๋ธ๋ก ์คํ ๋ฆฌ์ง๋ ๋ค์ ephemeral(ํ๋ฐ์ฑ) ๊ณผ persistent(๋นํ๋ฐ์ฑ) ์ ์ฅ์๋ก ๋๋ ์ ์๋ค. Ephemeral Storage (ํ๋ฐ์ฑ ์ ์ฅ์)๋ EC2 ์ธ์คํด์ค๊ฐ ์ข
๋ฃ๋๋ฉด ๋ฐ์ดํฐ๊ฐ ์ฌ๋ผ์ง๋ ์์ ์ ์ฅ์์ด๋ค. AWS์์ ๋ํ์ ์ผ๋ก Instance Store๊ฐ ํ๋ฐ์ฑ ์ ์ฅ์์ด๋ค..
1. What's AMI ?AMI = Amazon Machine Imageโถ AMI are a customization of an EC2 instanceโถ AMI(Amazon Machine Image)๋ AWS์์ EC2 ์ธ์คํด์ค๋ฅผ ์์ฑํ ๋ ์ฌ์ฉํ๋ ํ
ํ๋ฆฟ์ด๋ค.โถ AMI๋ EC2 ์ธ์คํด์ค๋ฅผ ์ฝ๊ฒ ์์ฑํ๊ณ ๊ด๋ฆฌํ ์ ์๋๋ก ๋์์ฃผ๋ OS + ์ค์ ํจํค์ง๋ก ์ด์ ์ฒด์ (OS), ์ ํ๋ฆฌ์ผ์ด์
, ์คํ ํ๊ฒฝ ์ค์ ๋ฑ์ ํฌํจํ EC2 ์ธ์คํด์ค์ ์ฌ๋ณธ(์ด๋ฏธ์ง)์ด๋ค.You have your own software, configuration, operating system, monitoring...Faster boot / configuration time because all your software is pre-p..