Sunday, January 20, 2013

Making snapshots of EC2 instances

Following is a link that seems to provide solid advice, and is clearly written, but only regarding backups to snapshots:

This method is a bit risky if Amazon has a complete failure, so additionally, would want to use a method such as rsync to do traditional OS backups to an offsite machine. Such as rsync (which I will cover in a subsequent post).

I only use snapshots to record major events in the system lifetime, like initial configuration. Which is good because you don't want a lot of snapshots, anyway. OS backups using rsync are done twice daily from cron.

To restore a failed system, I would create a new instance from a snapshot, then restore from my latest rsync backup.

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