S3 101 Flashcards
What does S3 stand for?
Simple Storage Service
What is S3 used for?
S3 provides developers + IT teams w/ secure, durable, highly-scalable object storage.
Retrieve and store ANY amount of date form ANYWHERE on the web
What type of storage does S3 use?
S3 uses Object-based storage.. I.E.: it allows you to upload files
What is the maximum allowable storage you can have in S3 for a single object?
S3 files can be from 0 Bytes to 5 TB
What is the maximum allowable storage you can have in S2 in total?
The total volume of data and number of objects you can store are unlimited.
What are S3 buckets?
What are S3 buckets used for?
S3 buckets store files.
–Think of them like a file folder–
What type of namespace does S3 use?
S3 uses a universal namespace.
That is names must be globally unique
You go into the AWS console and want to make a bucket called ‘testbucket’ in the Japanese region.
Why won’t AWS let you do this?
Bucket names are Global not Regional.
When you successfully upload a file to S3, what will you receive back?
an HTTP 200 code
What are the components of an S3 object?
What do each of these components represent?
An S3 object consists of the following:
- Key - The Name of the Object
- Value - The data, made up of a sequence of bytes
- Version ID - Important for versioning / version control
- Metedata - data about data you are storing
- Subresources - Access Control List, Torrent
What is the data consistency mode in S3?
Read After Write Consistency.
Strong Consistency for everything
For what % availability was the S3 platform built?
99.99%
What % availability does Amazon guarantee for S3 Standard?
99.9%
What % durability does Amazon guarantee for S3 Standard Information?
99.999999999% (11 9’s)
What is the availability of S3-OneZone-IA?
99.50%
What are the key features of S3?
Key Features are:
- Versioning
- MFA Delete
- LifeCycle Management
- Tiered Storage
- Secure Data Using Access Control Lists and Bucket Policies
What are the key features of S3 Standard?
1) 11 9s Durability
2) Redundancy Stored redundantly across multiple devices in multiple facilities, designed to sustain the loss of 2 facilities concurrently
What does the “IA” stand for in “S3-IA”?
IA = Infrequently Accessed
What type of data is best stored in S3-IA?
S3-IA is best for data that is not accessed frequently but requires rapid access when needed.
What is the pricing structure of S3-A1A?
Specifically how does it differ from that of S3 Standard?
S3-IA has a lower based storage fee than S3 Standard.
However, S3-IA charges a retrieval fee
What are the key differences between S3-IA and S3 One Zone-IA?
Compared to S3-IA, S3 One Zone-IA has a lower cost but less durability.
S3 One Zone-IA is a lower cost options for IA data.
S3 One Zone-IA does not give the multiple Availability Zone resilience of S3 Standard and S3 IA
What is S3-Intelligent Tiering?
S3 Intelligent tiering uses LM and is designed to optimize cost by automattically moving data to the most cost-effective access tier, without performance impact or operational overhead.
–Basically it’s the autopilot mode for S3 tiering –
How does the pricing model work for S3 Intelligent Tiering?
Very Similar to S3 Standard –Except–
You have access to IA which is less expensive.
There is a monitoring / automation cost per thousand objects per month
What is Glacier primarily used for?
S3 Glacier is mostly used for data archival at low-cost
How long does it take to retrieve something from S3 Glacier?
Retrieval times from S3 Glacier are configurable and range from minutes to hours
