Chapter 21 - Migration

Question 1

Snowball

Answer 1

It’s really based on how much data we’re moving.

• When do we use Snowball?
• Snowballs are really perfect for terabytes.
• We’re talking 20, 30, 40 TB of data that we have to migrate.
• Where you have slow internet,
• In situations where it has to be secure,
• Snowball is going to be faster than just migrating data over your standard ISP if that ISP is rather slow.
• Keep in mind that it does encrypt all of your data by default.

Question 2

Storage Gateway

Answer 2

Anytime we think about hybrid architecture, think: Which version of Storage Gateway could complement this?

We can keep all of our data backed up and keep that cached copy, the most used data, on-prem.
Storage Gateway–it’s a VM.

Is it going to be
File Gateway - Your physical file server in your data center or in your office just doesn’t have enough storage.
Tape Gateway,
Volume Gateway

Question 3

DataSync

Answer 3

DataSync is that agent-based solution

If you’re presented with a question on the exam that compares DataSync to Storage Gateway,

• DataSync is really for one-time migrations and it’s really just for file shares.
• So just keep that one-time in mind when you’re talking about DataSync.
• EFS and FSx are both viable locations for DataSync to dump stuff on.
• It’s really about taking that file share from on-prem and migrating it to AWS.
  *

Question 4

Transfer Family

Answer 4

This is that awkward-looking family that has that superpower of FTP protocols

• FTPS
• SFTP
• and for inside of the VPC only, FTP
• Basically tricking those legacy applications to be able to read and write from S3 and EFS

Question 5

Migration Hub

Answer 5

It’s our organizational tool that allows us to organize things

Just at the high level that allows us to discover what’s going on and then track everything as the migration happens.

Question 6

Database Migration Service

Answer 6

This is our go-to tool for anything database migration related.

• It has that schema conversion tool,
• Allows us to migrate Oracle and SQL Servers into any other database engine (Aurora)

Question 7

Server Migration Service- SMS

Answer 7

Is going to be our tool to help us migrate off of our data center into AWS.

It can take those VMware VMs and make the transition very simple by creating that AMI and placing it in our account.