Disaster Recovery & Migrations Flashcards
RPO
The time between the last backup and the time of the disaster which results in a data loss
RTO
The time between the disaster the recovery of the disaster
Backup and Restore
High RPO - Long time in between backups
Pilot Light
A small version of the app is always running in the cloud
- faster RTO than Backup and Restore
Warm Standby
Full system is up and running, but at minimum size which scales up to production load when needed
Multi Site / Hot Site
Full Production Scale is running AWS and On Premise
- very low RTO (very expensive)
DMS
Database Migration Service - securely migrate databases to AWS, resilient, self healing
Schema ConversionTool (SCT)
Convert your Database’s Schema from one engine to another e.g. SQL Server to PostgresSQL
DataSync
Move large amount of data from on- premise to AWS targeted towards files systems