Storage

Question 1

Elastic Block Store (EBS)

Answer 1

Enables you to create individual storage volumes and attach them to an Amazon EC2 instance:​

Offers block-level storage,
Volumes are automatically replicated within its Availability Zone,
Can be backed up automatically to S3 through snapshots;

Question 2

EBS Features

Answer 2

Features:

*Snapshots
Point in time snapshots;
Recreate a new volume at any time;

*Encryption
Encrypted Amazon EBS volumes;
No additional cost;

*Elasticity
Increase capacity;
Change to different types;

Question 3

Volumes

Answer 3

Charged by the amount you provision in GB per month, until you release the storage.

Question 4

IOPS

Answer 4

Included in the price of General Purpose SSD volumes.

For Amazon EBS magnetic volumes, I/O is charged by the number of requests that you make to your volume.

With Provisioned IOPS SSD volumes, you are also charged by the amount you provision in IOPS (multiplied by the percentage of days that you provision for the month).

Question 5

Snapshots

Answer 5

Added cost of Amazon EBS snapshots to Amazon S3 is per GB-month of data stored.

Question 6

Data Transfer

Answer 6

Inbound = free.
Outbound across Regions = charges

Question 7

S3 Bucket

Answer 7

A managed cloud storage solution that is designed to scale seamlessly and provide 11 9s of durability. You can store virtually as many objects as you want in it, and you can write, read, and delete objects. Names are universal and must be unique across all existing names in Amazon S3. Objects can be up to 5 TB in size. By default, data in Amazon S3 is stored redundantly across multiple facilities and multiple devices in each facility.​

Question 8

S3 storage classes

Answer 8

Standard
Intelligent-Tiering
Standard Infrequent Access (IA)
One Zone-Infrequent Access (IA)
Glacier
Glacier Deep Archive

Question 9

Standard

Answer 9

High durability, availability, and performance object storage for frequently accessed data.

Question 10

Intelligent-Tiering

Answer 10

Optimize costs by automatically moving data to the most cost-effective access tier, without performance impact or operational overhead.

Question 11

Standard Infrequent Access (Amazon S3 Standard - IA)

Answer 11

Accessed less frequently, but requires rapid access when data is needed.

Question 12

One Zone-Infrequent Access (Amazon S3 One Zone - IA)

Answer 12

Same as Standard-IA but only stores data in a single availability zone.

Question 13

Glacier

Answer 13

Secure, durable, and low cost storage class for data archiving. You can reliably store any amount of data at costs that are competitive with or cheaper than on premises solutions.

Provide 11 9s,
Support encryption in transit and at test through SSL or TLS,
Vault lock feature enforces compliance through a policy.

Encrypted with AES-256 and managed encryption keys.

Question 14

Glacier Deep Archive

Answer 14

Long-term retention and digital preservation for data that might be accessed once or twice in a year. It is designed for customers particularly in highly regulated industries that retain datasets for 7–10 years (or more) to meet regulatory compliance requirements.

Question 15

S3 Common Scenarios

Answer 15

Backup and Storage,
Application Hosting,
Media Hosting,
Software Delivery.

Question 16

S3 Pricing

Answer 16

• Pay only for what you use, including:
  GBs per month
  Transfer OUT to other Regions
  PUT, COPY, POST, LIST, and GET requests
• You do not pay for:
  Transfers IN to Amazon S3
  Transfers OUT from Amazon S3 to Amazon CloudFront or Amazon EC2 in the same Region

Question 17

Elastic File System (EFS)

Answer 17

Provides simple, scalable, elastic file storage for use with AWS services and on-premises resources. It offers a simple interface that enables you to create and configure file systems quickly and easily.

Question 18

EFS Features

Answer 18

• File storage in the AWS Cloud,
• Works well for big data and analytics, media processing workflows, content management, web serving, and home directories,
• Petabyte-scale, low-latency file system,
• Shared storage,
• Elastic capacity,
• Supports Network File System (NFS),
• Compatible with all Linux - based AMIs for Amazon EC2

Question 19

EFS Implementation

Answer 19

1. Create your Amazon EC2 resources and launch your Amazon EC2 instance.
2. Create your Amazon EFS file system.
3. Create your mount targets in the appropriate subnets.
4. Connect your Amazon EC2 instances to the mount targets.
5. Verify the resources and protection of your AWS account.

Question 20

Archive

Answer 20

Any object (such as a photo, video, file, or document) that you store in Amazon S3 Glacier. It is the base unit of storage in Amazon S3 Glacier. Each has its own unique ID and it can also have a description.

Question 21

Vault

Answer 21

A container for storing archives. When you create a vault, you specify the vault name
and the Region where you want to locate the vault.

Question 22

Vault Access Policy

Answer 22

Determine who can and cannot access the data that is stored in the vault, and what operations users can and cannot perform.

Question 23

Expedited

Answer 23

Retrievals are typically made available within 1 – 5 minutes (highest cost).

Question 24

Standard

Answer 24

Retrievals typically complete within 3 – 5 hours (less time than bulk, more time than expedited).

Question 25

Bulk

Answer 25

Retrievals typically complete within 5 – 12 hours (lowest cost).

Question 26

Lifecycle Policies

Answer 26

Enable you to delete or move objects based on age.