Accelerate Workload Migration & Modernization Flashcards
(20 cards)
Migrate to AWS
A lot of virtual machines
Terabytes of storage in a data center
Small Internet bandwidth
Little time to do with migration before deadline
Use AWS application migration service - to migrate mission critical virtual machines
Then
Use snowball device to transfer exported virtual machines to S3
Then
From S3, Import the VM‘s into Amazon EC2 instances using VM import/export
How long does it take AWS snowball to move terabytes of data?
about a week
LDAP for employee log in,
Mobile app,
Federated access to AWS,
Custom -built user authentication,
Must Use IAM roles
On On-Premises side:
Use SAML compatible solution for user authentication and authorization (LDAP - Active Directory). Use SAML assertion to get authorization token from the IAM identity provider to grant IAM roles to users
On AWS side:
Build openID connect provider for user authentication & link it to Cognito identity pools for authorization to AWS resources.
Process:
IdP gets request
LDAP authenticates user against identity store
IdP returns SAML assertion
SAML assertion to Cognito identity pool
Send to STS to get IAM role
Send back to user for access
Migrate Oracle to PostgreSQL
Schema and code transformation should be done first
Schema Conversion Tool
Database Migration Service
Synchronize 1 TB of on-prem data to S3. Small internet, short time frame
Use AWS S3 sync feature in the AWS CLI
Uploads the delta in a subset of data
Route 53 DNS Record types
Route traffic to an ELB, create Alias record
For EC2 instances, use a A record
For ELB, CloudFront, and S3, use an Alias record
For RDS, use a CNAME record
Need to verify this - makes sense but
Best way to migrate IBM WebSphere, MQ, and DB2 servers
AWS DMS & AWS SCT to convert, migrate IBM DB2 databases to Aurora
Set up ASG of EC2 instances with an ELB in front to rehost IBM WebSphere servers
RePlatform IBM MQ TO Amazon MQ using a phased approach
You can scale-in/scale-out your EC2 Auto scaling group in response to changes in system load in an Amazon SQS queue…
If you use a ASG target tracking scaling policy based on a custom Amazon SQS queue metric.
- Rehost
- RePlatform
- Refactor
- Lift and shift (sustain)
- Lift, tinker, and shift (optimize, don’t change core architecture)
- Re-architect (make cloud-native)
Private and dedicated connection between AWS VPC and on-premises data center
Direct Connect link
Network device in on-prem data center that supports BGP & BGP MD5 authentication
Migrate database using AWS SNOWBALL device
Request a snowball device
Create a database export using DMS and load it to the snowball device
Import the data into the AWS
Provision Aurora MySQL database and load the data

Simple automated way to back up data stored on EBS volumes.
Define back up and retention schedules for EBS snapshots by creating lifecycle policies based on tags
Amazon data lifecycle manager (DLM)
Amazon RDS does not support Oracle RAC
Host Oracle RAC on an EC2 instance 
Copying data to Snowball device is slow. Why? How to speed up the snowball cp command
Slow due to encryption overhead
Open multiple sessions to the snowball device and initiate parallel copy jobs
Also transfer lots of small files in batches
VMWare infrastructure
Migrating to AWS
Need to Generate new AMIs of VMs to be launched as EC2 instances
Install AWS Replication Agent in on prem virtualization environment
Use AWS Application Migration Service to do the migration
Migrate Oracle data warehouse to Redshift data warehouse quickly - lots of data, small internet speeds
Create Snowball import job
Schema Conversion Tool to load to snowball device
Install extraction agent on prem,
After data imported to S3 from Snowball,
Use Schema Convertion Tool to migrate data to Redshift
Local task + DMS task to replicate ongoing updates
Need: Storing media files cost effectively and durably for a web application
Migrate media files to S3
Set S3 bucket as the origin for a new CloudFront distribution
S3 is cheaper than EFS and is more suitable to use in storing static media files
You can’t set EFS as the origin of your cloudfront web distribution 
On prem tape based backups
Archive sensitive data
Setup Tape gateway to backup data to S3
Archive in S3 Glacier
VMware infrastructure in on premise data center
Storage server with SMB shares for logging and backups
Migrate Production workload to AWS EC2 instances
Preserve the software and configuration settings of the servers 

FSx for windows file server
DataSync agent in data center to start replication to AWS
Create VM images and upload them to an S3 bucket
Use AWS VM Import/Export to import images from S3 to launch as EC2 instances
Data transfer service that simplifies automates and accelerates, moving data between on premise storage systems and AWS storage services as well as between AWS storage services
AWS DataSync
Use cases:
Data migration of active data sets
Archiving cold data
