Section 6a: EC2 Instance Storage Flashcards
What’s an EBS Volume?
A network drive you can attach to your instances while they run
What is the main advantage of using an EBS Volume?
It allows instances to persist data, even after their termination
Can EBS Volumes be mounted to only one or multiple instances at a time?
One
Can EBS volumes be bounded to multiple or one specific availability zone?
One
In AWS, you get billed for the _____ of EBS Volumes
Provisioned Capacity
What is an EBS Snapshot?
A backup of the volume at a point in time
What is the EBS Snapshot Archive?
It is an archive where EBS snapshots can be stored and is 75% cheaper. It takes 24 - 72 hours to restore snapshots from the archive?
What is the Recycle Bin for EBS Snapshots?
It is a retainer for deleted snapshots so that snapshots can be recovered in the event of an accidental deletion. The snapshots are retained for a specified amount of time between 1 day and 1 year.
AMI stands for
Amazon Machine Image
AMI are
A customization of an EC2 instance and allows for faster boot / configuration time because all your software is pre-packaged
EC2 Image Builder is used to
Automate the creation, maintenance, validation, and testing of EC2 AMIs. It is a free service that can be ran on a schedule.
AN EC2 Instance Store is
A high-performance hardware disk for ephemeral data. They have better I/O performance than EBS Volumes
EFS stands for
Elastic File System
EFS is a
managed NFS (network file system) that can be mounted on 100s of EC2 instances.
EFS-IA is a
Storage class that is cost-optimized for files not accessed every day. Files of a certain age are moved to EFS-IA
