AWS - Storage Flashcards
What is AWS S3?
AWS S3 stands for Amazon Simple Storage Service
- Object storage service for the cloud that is highly available
- Objects (Files) are stored in buckets (Directory)
- Objects can be Public or Private
- You can set security at the bucket level or individual object leverl using access control lists (ACLs), Bucket policies or access point policies.
- You can enable versioning to create multiple versions of your file in order to proctect against accidental deletion and to use a previous version.
- AWS S3 is a regional service, but bucket names are globally unique
What is AWS S3 durability standard?
- Durability is important so your objects are never lost or compromised.
- Amazon S3 Standard is designed for 99.999999999%(11 9’s) of durability.
What is AWS S3 availability standard?
- Availability is important so you can access your data quickly when you need it.
- Amazon S3 Standard is designed for 99.99% of availability.
What ar ethe 7 AWS S3 Storage Classes?
- S3 Standard
- S3 intelligent-Tiering
- S3 Standard Infrequent Access (IA)
- S3 One Zone-Infrequent Access(IA)
- S3 Glacier
- S3 Glacier Deep Archive
- S3 Outpots
Characteristics of AWS S3 Standard class?
- S3 Standard
- General Purpose storage
- Data stored across multiple availability zones
- Low latency and high throughput
- Recommended for frequenctly accessed files
Characteristics of AWS S3 Intelligent-Tiering class?
S3 intelligent-Tiering
- Automatically moves data to the most-cost effective storage class
- No retrieval fees
- Automatic cost savings
- Data stored across multiple availability zones
- recommended for data with unknown or changing access patterns.
Characteristics of AWS S3 S3 Standard Infrequent Access (IA) class?
Standard Infrequent Access:
- Data accessed infrequently by requires rapid access.
- Cheaper than S3 standard
- Data stored across multiple availability zones
- recommended for:
- Long-lived data
- Infrequently accessed
- Millisecond access when needed.
Characteristics of AWS S3 One Zone-Infrequent Access(IA) class?
S3 One Zone-Infrequent Access(IA):
- Like S3 Standard-IA but stored in single availability zone.
- Cost 20% less than S3 standard-IA
- Data stored in this storage class can be lost.
- Availability 99.95%
- recommended for:
- Re-creatable data
- Availability and Durability are not essential
- Millisecond access when needed.
Characteristics of AWS S3 Glacier class?
S3 Glacier:
- Long-term data storage.
- data retrieval takes longer.
- 3 retrieval options:
- 1 - 5 Minutes
- 3 - 5 Hours
- 5 - 12 hours
- Data stored accross multiple availability zones.
- recommended for:
- Long-term backup
- Cheaper storage option
Characteristics of AWS S3 Glacier Deep Archive class?
Glacier Deep Archive:
- Like Glacier but longer access times.
- 2 retrieval options:
- 12 hours
- 48 hours
- Data stored accross multiple availability zones.
- Cheapest of all S3 Options
- recommended for:
- Long-term data archival accessed once or twice a year.
- Retaining data fro regulatory complience requirements
Characteristics of AWS S3 Outposts class?
S3 Outposts:
- provides data storage on premise.
- single storage class
- Data stored accross multiple devices and servers.
- recommended for:
- Data needs to be kept local
What is Amazon EBS?
Amazon Elastic Block Storage (EBS) is storage device (called a volume) that can be attached to (or removed from) your instance.
- Data persists when the instance is not running
- Can only be attached to one instance in the same Availability Zone
- Tied to one Availability Zone
Recommended For:
- Quickly accessible data
- Running a database on an instance
- Long-term data storage
What is EC2 Instance Store?
An instance store is local storage that is physically attached to the host computer and cannot be removed.
- Storage on disks physically attached to an instance
- Storage is temporary since data loss occurs when the EC2 instance is stopped
- Faster with higher I/O speed
Recommended For:
- Temporary storage needs
- Data replicated across multiple instances
What is Amazon Elastic File System (EFS)?
EFS is a serverless network file system for sharing files.
- Only supports the Linux file system
- Accessible across different Availability Zones in the same Region
- More expensive than EBS
- Recommended For:
- Main directories for business-critical apps
- Lift-and-shift existing enterprise apps
What is Amazon Storage Gateway?
Storage Gateway is a hybrid storage service.
- Connect on-premises and cloud data
- Supports a hybrid mode
- Recommended for:
- Moving backups to the cloud
- Reducing costs for hybrid cloud storage
- Low latency access to data
