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Advanced EBS Snapshot Management (STG402) | AWS re:Invent 2013

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Amazon EBS Snapshot is an easy to use feature that backs up your data on an Amazon EBS volume. This session covers filesystem selection (XFS, ext*, etc.), quiescing of the filesystem, tagging of …

Amazon EBS Snapshot is an easy to use feature that backs up your data on an Amazon EBS volume. This session covers filesystem selection (XFS, ext*, etc.), quiescing of the filesystem, tagging of snapshots, and life-cycle management of snapshots. In this session, we introduce two new OSS tools. One tool manages arrays of snapshots using tagging, making it easier to snapshot and recover a RAID array of Amazon EBS volumes; another tool manages snapshots of root volumes across an AWS account, and automatically snapshotting and applying lifecycle management to root volume snapshots.

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  • 1. Advanced EBS Snapshot Management Craig Carl, AWS Session STG402 © 2013 Amazon.com, Inc. and its affiliates. All rights reserved. May not be copied, modified, or distributed in whole or in part without the express consent of Amazon.com, Inc.
  • 2. EBS • Network-attached block devices for Amazon EC2 instances • Protected, durable within an AZ – AFR between 0.1% – 0.5% • Standard and PIOPS – PIOPS is for databases!
  • 3. Snapshots • More durable than an Amazon EBS volume – Stored in Amazon S3 • Differential (space-efficient) – First snapshot is a clone – Pay for only what you use • AZ-independent – Clone into any AZ • Can be copied efficiently across regions
  • 4. Why Take Snapshots • More durable than Amazon EBS • Versioning • Backups • Cost
  • 5. Individual snapshots are easy create-snapshot delete-snapshot copy-snapshot
  • 6. Managing Thousands of Snapshots Isn’t Easy • A snapshot should have a lifecycle – – – – Grandfather-father-son x versions x dailies, y weeklies, z monthlies A lifecycle might span regions • Snapshots of arrays
  • 7. Introducing arche • arche – https://github.com/AWSLabs/arche • OSS, built and maintained by AWS – Accepting pull requests from the community
  • 8. arche • Two primary pieces – arche takes snapshots and manages lifecycles • Takes snapshots based on a SWF schedule – Tags snapshots • Deletes snapshots based on a policy – Limited to number of days now – pierus is a CLI for restoring snapshots.
  • 9. arche Uses Tags • on volumes KEY VALUE arche 1 retention <int> (days) array <str> dest-region <str>
  • 10. arche Uses a Lot of Tags • on snapshots KEY VALUE arche 1 src_instance <str> src_device <str> expire_date date array <str> src-region <str>
  • 11. Accepting pull requests! • • • • File system quiesce support More advanced lifecycles Multi region copy AMI create support
  • 12. Questions? Craig Carl crcarl@amazon.com STG402
  • 13. We are sincerely eager to hear your feedback on this presentation and on re:Invent. Please fill out an evaluation form when you have a chance.