EC2 Instance storage

Question 1

What an EBS volume

Answer 1

• one EBS can be only mounted to one EC2 instance
• network drive you can attach to your EC2 instance while they run.
• EBS Volumes CANNOT be attached to multiple EC2 instances at a time.
• EBS Volume is a network drive you can attach to your instances while they run, so your instances’ data persist even after their termination.
• mapped to an availability zones
• can use EBS snapshots for backups/ transferring EBS volumes across AZ

Question 2

EBS

Answer 2

• delete on termination attribute
• By default it is tick for root and not for EBD volume
• To save Save some data, then you can disable delete on termination for the root volume

Question 3

EBS Multi-Attach

Answer 3

o1 and io2 volume types: this is called the EBS Multi-Attach feature.

Question 4

EBS snapshots:

Answer 4

• Make a backup (Snapshot) of your EBS volume at a point in time
• Can copy snapshot across AZ or region

Question 5

AMI : Amazon Machine Image

Answer 5

• AMI power our Ec2 instance
• create ready to us EC2 instance with our customization
• can customize of your Ec2 instance:
  > add your own software, configuration, OS, monitoring

> aster boot, configuration time, cause all your software are pre-packaged

> AWS marketplace AMI where you find third party AMI

• AMIS used for
• add your own OS
• add your own configuration
• add your own software license

Question 6

EC2 Image Builder

Answer 6

• For automate the creation of virtual Machines or container images
• Automate the creation, maitian, validate and test EC2 AMIS
• free service
• Run on schedule
• Which service can be used to automate image management processes

Question 7

EC2 Instance store

Answer 7

• high performance hardware disk attached to our EC2 instance
• lost if our instance is topped / terminated
• EC2 Instance Store has better I/O performance, but data is lost if the EC2 instance is terminated
• Use Case: used for buffer/cache/scratch data/ temporary content
• Hardware fails, data loss
• Better to have backup and replication are your responsibility

Question 8

EFS: Elastic files system

Answer 8

• Network files system, can be attached 100s of instance in a region
• only linux instance in Multi AZ
• High available, scalable, expensive (3xgp2), pay per use, no capacity planning
• Which EC2 Storage would you use to create a shared network file system for your EC2 Instances?

Question 9

EFS-IA

Answer 9

• cost-optimized storage class for infrequent accessed files

- move files that are not accessed fro 60 days to EFS-IA

Question 10

FSx for Windows

Answer 10

• Network files system for windows servers.
• 3rd party high-performance files system on aws
• Which of the following is a fully managed native Microsoft Windows file system

Question 11

FSx for luster

Answer 11

High performance computing (HPC), fully managed, scalable files storage, linux file system

• lustre= from linux and cluster
• or ML, analytic, video, processing, financial modeling