Snapshots

Introduction When you’re running MongoDB at scale with data distributed across multiple Pure Storage FlashArrays, achieving truly consistent backups becomes a critical and interesting technical challenge. In this post, I’m walking through an automated snapshot and recovery solution for a sharded MongoDB cluster running across two separate FlashArrays. While this demonstration uses two nodes for clarity, the same approach scales to N nodes across N arrays. The coordination mechanism remains identical regardless of cluster size.

By Argenis Fernandez This post is archived here. Pleae reach out to me, Anthony Nocentino if you have any questions. I gotta admit, some of you are really hard to convince. I’ve been saying for years that given a large enough database size (or a really small RTO storage based snapshots should be Plan A for recovering the database in the event of a disaster. Yes, you will have a Plan B, likely native backups.