Summary
We can't emphasize the importance of backup enough. But the critical balance we all need to achieve is to configure our process so that it isn't too little to impact our RTO and RPO and isn't so much that it shoots down our AWS budget.
In this chapter, we learned about the various backup solutions offered by AWS and how they help us make backups. We also learned which solution to use under which conditions. We looked in more detail at DLM, and now, rather than writing our own custom snapshot solution, we can use DLM to automate the snapshot of our EBS instances. We also looked in more detail at S3, which provides us the 11 9s of durability, and with a few lines of code, we learned how to push our backup to S3. In the end, we looked at Glacier as a long-term archival solution, and at the same cost-effectiveness.
Glacier is one of the most cost-effective backup solutions available in the cloud, from just $0.00099 per GB-month (less than one-tenth of one cent...