EC2 - Advanced Storage

Question 1

What is EFS and which OS is it for?

Answer 1

Elastic File System (EFS) is for Linux

Question 2

EFS Facts?

Answer 2

• NFS v4 (v4) = Network Filesystem, which is a Linux thing
• Allows for the creation of shared ‘filesystems’ which can be mounted within multi EC2 instances.
• Private service inside a VPC
• Mount Targets have IP addresses within the subnet
• You need to put a mount target in every AZ within the VPC for high availability (HA)

Question 3

EFS Performance Modes?

Answer 3

• General Purpose
• Max I/O -> good for highly parallel options; however, it has increased latency
  > Generally pick General Purpose

Question 4

EFS Throughput Modes?

Answer 4

• Bursting vs Provisioned Throughput Modes (similar to GP2 vs IO1).
• Generally pick Bursting

Question 5

EFS Storage Classes?

Answer 5

• Standard
• IA (Infrequent Access)

Question 6

FSx for Windows - keywords?

Answer 6

• VSS: Windows feature that allows users to perform file and folder-level restores to previous versions
• SMB: Native windows format (vs “NFS” which is used by Linux - think EFS)
  DFS: Windows feature for scaling out performance

Question 7

FSx for Lustre - What is it? Specs?

Answer 7

• Implements the Lustre filesystem designed for high performance computing
• Supports POSIX-style permissions for filesystems.
• Can scale to 100 GBs/s of throughput and sub-millisecond latency
• Runs in a single AZ

Question 8

FSx for Lustre - Use Cases

Answer 8

• Machine learning
• Big Data
• Financial Modeling

Question 9

FSx for Lustre - Deployment Types?

Answer 9

• Scratch: FASTEST, temporary, but not as reliable (no replication)
• Persistent: longer term, HA (in one AZ), self-healing

Question 10

FSx for Lustre - relation to S3?

Answer 10

You can configure it to use an S3 repository
> Data is lazy-loaded from S3