EC2 Instance Storage + Storage Classes Flashcards
Types of containers in AWS
- Amazon Elastic Container - ECR
- Amazon Elastic Container Service - ECS
- Amazon Elastic Kubernetes Service - EKS
ECR
Amazon Elastic Container
Stores, shares, and deploy container software
ECS
Amazon Elastic Container Service
- Fully managed and serverless using Fargate
- Run on EC2, Fargate
- Supports Docker and Docker Compose CLI
EKS
Amazon Elastic Kubernetes Service
- Fully managed (EKS) open-source system
- Can run on EC2, Fargate, EKS on outposts
- Supports Kubernetes
You need to use Docker to manage your newly deployed container-based application. Which AWS service can help you manage the app?
ECS - Amazon Elastic Container Service
What is Fargate
It is a pay-as-you-go auto-scaling compute engine.
1. You build your container image
2. Define memory and compute resources
3. Run and manage container resources
It does not share kernels, CPU, memory resources, elastic network interfacing that provide isolation
Fargate vs Lambda
- Lambda run < 15 mins
- Fargate >15 mins
- Lambda and Fargate are both serverless
- Lambda has a ALWAYS free-tier
- Fargate you pay for the resources you used (vCPUs, memory and storage)
What is amazon EBS
Elastic Block Store
- It’s directly attached
- Reliable (high availability
and durability)
- Provides persistent block storage volumes
- Ensures data is preserved, even if the instance crashes.
Scalability.
EBS can be expanded on the fly without any downtime.
EBS also has snapshot capabilities.
This means it can take backups
and also use these backups to create new volumes.
EBS use cases are hosting relational or NoSQL databases,
data warehousing and big data analytics,
and also enterprise resource planning
and customer relationship management applications.
What is EFS
Elastic File System
EFS is a scalable file storage solution
for EC2 and other AWS services.
Some key features of EFS is it’s fully managed.
This simplifies the complexities of deploying
and maintaining advanced file systems.
It scales automatically.
EFS grows and shrinks automatically
as you add and remove files,
ensuring that you only pay for the storage you use.
EFS also features concurrent access.
It’s designed to be accessed by multiple EC2 instances
from various AWS services simultaneously.
EFS is perfect for applications with growing storage needs,
like content management and web serving.
It’s also suitable for big data analytics applications,
and it’s commonly used in development testing
and staging environments thanks to its scalability
and shared access.
Instance Stores
temporary block level storage
directly attached to the EC2 instance.
Unlike EBS, the storage is ephemeral,
and it’s ideal for temporary data.
Some key features of instance stores
is its high I/O performance.
The direct attached storage provides a fast I/O operation.
Instance stores are temporary storage.
Data on instance store volumes is lost
if the instance stops, terminates, or crashes.
And instance stores are available at no extra cost.
They come as part of the instance,
meaning you don’t pay additional fees for the storage.
Instance stores are best for temporary storage
of information like caches or buffers.
It’s suitable for workloads that need to write
and discard large amounts of data.
It’s often used in situations where data
is replicated across multiple instances,
like distributed data processing tasks.
Selecting the right storage is important.
Fix this
EBS is block level storage
used with EC2 instances, EFS is a file system
scalable across multiple EC2 instances,
and instance store provides temporary
block level storage directly attached to the instance.
Know that only EBS and EFS offer durable storage solutions.
Instance store’s data is ephemeral,
meaning the data doesn’t persist
after the instance stops or terminates.
While all three offer high performance,
EBS is particularly known for its provisioned IOPS,
EFS is scalable file storage,
and instance store for a high I/O operation’s
suitable for temporary data.
Remember that while EBS and EFS have costs
associated with the amount of storage provisioned,
instance store comes at no additional cost,
as it’s included in the instance price.
Storage class - S3 Standard
- Frequently accessed data
- High throughput performance and low latency
- Can scale automatically
to handle your storage needs - across multiple devices in multiple facilities
Storage class - S3 Standard-Infrequent Access
- data that’s less frequently accessed,
but requires rapid access when needed - retrieval fee, it’s best for data accessed less frequently,
but quickly when needed.
Storage class - S3 Intelligent-Tiering
- data with unpredictable access patterns,
it automatically moves data between two access tiers. - designed for savings in storage costs
without performance impact.
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Storage class - One Zone-Infrequent Access
- storing data in just one availability zone
- Cost-effective, but slightly less durable
than multiple zone options - Secondary backup or data that’s easily reproducible.
