EC2 Instance Storage Flashcards
EBS Volume
An EBS (Elastic Block Store) Volume is a network drive you can attach to your instances while they run.
-They can only be mounted to one instance at a time
-It’s locked to an Availability Zone
-You get billed for all the provisioned capacity
EBS Snapshots
Snapshots are incremental backups, which means that only the blocks on the device that have changed after your most recent snapshot are saved.
-Can copy snapshots across AZ or Region
EBS Snapshots Features
-EBS Snapshot Archive = 75% cheaper and it takes within 24 to 72 hours for restoring the archive
-Recycle Bin for EBS Snapshots = retain deleted snapshots so you can recover them after an accidental deletion (from 1 day to 1 year)
AMI Overview
-AMI = Amazon Machine Image
-AMI are a customization of an EC2 instance
-AMI are built for a specific region (and can be copied across regions)
-You can launch EC2 Instances from Public AMIs, Your own and from the AWS Marketplace AMI.
EC2 Image Builder
Used to automate the creation, maintain, validate and test EC2 AMIs
-Can be run on a schedule
-Free service
EC2 Instance Store
Is a high-performance hardware disk
-lose their storage if they’re stopped
-Good for temporaty content
-Risk of data loss if hardware fails
EFS – Elastic File System
Managed NFS (network file system) that can be mounted on 100s of EC2
-EFS works with Linux EC2 instances in multi-AZ
-Highly available, scalable, expensive (3x EBS), pay per use, no capacity planning
EFS Infrequent Access (EFS-IA)
Storage class that is cost-optimized for files not accessed every day
-Up to 92% lower cost compared to EFS Standard
-EFS will automatically move your files to EFS-IA based on the last time they were accessed
Amazon FSx
Fully managed 3rd party high-performance file systems on AWS.
-FSx for Lustre (for HPC & Linux)
-FSx for Windows File Server (Supports SMB)
EC2 Instance Storage - Summary
-EBS volumes
-AMI
-EC2 Image Builder
-EC2 Instance Store
-EFS & EFS IA
-FSx for Windows & for Luster
