Migration Flashcards
3 ways to move data to the cloud
- Internet
- Direct Connect
- Physical devices
Using Internet to move data to cloud
- can use existing internet connection
- very slow
- security risk
Using Direct Connect to move data to cloud
- faster and more secure
- not practical if it’s not needed after the migration
Snow Family
Provides
- migration of large-scale data
- data collection and processing at the edge
Snow Cone
- 8 TB storage
- 4 GB memory
- IoT sensor integration
- perfect for edge computing where space and power are constrained *
Snow Ball & Snow Ball Edge
- perfect for Terabytes (48-81 TB of storage)
- pick for scenarios with slow internet connection or needing secure, encrypted data
- storage, compute and GPU flavors
- varying amounts of CPU and RAM
- perfect for off-grid computing or an AWS migration*
Snow Mobile
- 100 PB of storage
- designed for exabyte-scale data
- big escorted truck
What is the turnaround time for snow family?
about a week
What is Storage Gateway?
- a hybrid cloud storage service that lets you merge on-prem resources with the cloud
- specifically it’s a vm that you run in your data center
- can be used for a one-time migration, or a long-term pairing of your on-prem architecture with AWS
File Gateway
- NFS or SMB Mountain which an be mounted locally and it backs up all of your data in S3
- Can keep a local copy of recently used files (cached)
What’s a good use case for File Gateway?
when on premise users don’t have enough on-prem storage space. *
Volume Gateway
- iSCSI mount
- cached or stored modes
- create EBS snapshots
- perfect for backup or migration
Tape Gateway
- replaces physical tapes
- tricks devices into thinking they are backing up to a tape, when they are actually backing up to the cloud (Glacier or Glacier Deep Archive)
- integrated as a VM on prem*
AWS Data Sync
- an agent based solution for migrating on prem to AWS
- secure via TLS
- good for a one-time migration
- can dump to FSx or EFS
Why would you choose Storage Gateway over AWS Data Sync?
If you want to keep using it after the migration is finished
AWS Transfer Family
- allows you to easily move files in/out of S3 or EFS using SFTP or FTP over SSL or FTP
- tricks legacy users into thinking they are writing to their old endpoints when they are actually hitting S3 cloud storage*
Migration Hub
a single place to track the progress of your application migration to AWS
- an organization tool
Server Migration Service
- lets you take your VCenter/VSphere data center architecture and convert it to an AMI
- lets you schedule when each vSphere gets converted to an AMI, which can in turn launch an EC2 instance
- NOTE: exam treats the Migration Services as magic
Database Migration Service
- takes an old oracle DB or SQL Server or MySQL BD on-prem and converts it to Aurora DB
- can be used to consolidate multiple databases into one database
4 migration questions to ask yourself during the exam
1) where are we going (to what region)? what does the architecture look like? do we need to look back at the old data center?
2) how do we get there? do we want a hybrid permanent solution?
3) do we do it all at once?
4) Is it a full or partial migration?
What are the benefits/pitfalls of migrating all at once?
- simpler
- will have downtime
- will we meet our uptime SLAs?
