Amazon EBS Fast Snapshot Restore (FSR) Fast Snapshot Restore (FSR) allows you to create low-latency and instant-ready Amazon EBS volumes from snapshots, avoiding the usual initialization delay. Normally, when you restore an EBS volume from a snapshot, it experiences lazy loading, which can cause high latency for the first read operations. FSR eliminates this issue….
Category: aws
Reserved Instances
AWS Reserved Instances (RIs) come in two primary types: Standard Reserved Instances and Convertible Reserved Instances. Both offer significant cost savings compared to On-Demand pricing in exchange for committing to a 1- or 3-year term, but they differ in terms of flexibility, usage, and savings. 1. Standard Reserved Instances (RIs) Key Characteristics: Use Case: Pros:…
Spot instances requests
When using AWS Spot Instances, you have the option to choose between two types of request behaviors: These two types of requests determine how AWS manages your Spot Instance lifecycle and how they handle interruptions. Let’s look at the differences: 1. One-Time Spot Instance Requests: Description: Key Features: Use Cases: 2. Persistent Spot Instance Requests:…
Saving plans
AWS Savings Plans are a flexible pricing model offered by Amazon Web Services that provide significant cost savings compared to on-demand pricing. Essentially, by committing to a consistent amount of usage for one or three years, you can save up to 72% on certain AWS services. There are two main types of Savings Plans: Key…
Networking
AWS provides different types of network interfaces to optimize networking performance based on use cases. The three main network interfaces are Elastic Network Interface (ENI), Elastic Network Adapter (ENA), and Elastic Fabric Adapter (EFA). Here’s a comparison: Feature ENI (Elastic Network Interface) ENA (Elastic Network Adapter) EFA (Elastic Fabric Adapter) Purpose General-purpose networking High-performance networking…
Architecture
Notes for AWS Organizations
Policy Boundary vs SCP Feature IAM Policy Boundary Service Control Policies (SCPs) Scope Applied to individual IAM users/roles Applied to all IAM users/roles within an AWS account or organization Function Defines maximum allowable permissions for a user or role Restricts permissions for all IAM users/roles in an account or organizational unit Granularity Granular, tied to…
Notes for Security
AWS MGN, AWS DR
Here’s a short comparison table between AWS MGN, AWS DR, and CloudEndure to highlight their key features: Feature AWS MGN (Application Migration Service) AWS DR (Disaster Recovery) CloudEndure (Disaster Recovery) Primary Focus Lift-and-shift migration of workloads to AWS Disaster recovery and failover solutions Disaster recovery with minimal downtime Use Case Migration of physical, virtual, and…
AWS DataSync – Transfers types
Supported transfers in the same AWS account DataSync supports transfers between the following storage resources that are associated with the same AWS account. Source (from) Destination (to) NFS SMB HDFS Object storage Amazon S3 (in AWS Regions) Amazon EFS Amazon FSx for Windows File Server FSx for LustreFSx for OpenZFSFSx for ONTAP Amazon S3 (in…