MongoDB

App-Consistent MongoDB Snapshots Across Multiple Pure Storage FlashArrays

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.