Day 16: Amazon EC2 – Instance Storage Mysteries πŸš€πŸ’½

Day 16: Amazon EC2 – Instance Storage Mysteries πŸš€πŸ’½

EBS Volume Fundamentals: Your Virtual USB Stick πŸ”—πŸ“

1. EBS Volume Definition πŸ“šπŸ”—

  • Nature:

    • Elastic Block Store (EBS) Volume.

    • Network drive attachable to running instances.

  • Persistence:

    • Enables instances to retain data post-termination.
  • Characteristics:

    • Exclusive attachment to one instance.

    • Bound to a specific availability zone.

  • Analogy:

    • Conceptualized as a "network USB stick."
  • Free Tier Bonus:

    • Avail 30 GB of free EBS storage (General Purpose or Magnetic) monthly.

Decoding EBS Volumes: Network Drive Dynamics πŸ”„πŸ’»

1. Key Attributes πŸŒπŸ’‘

  • Network Interaction:

    • Operates as a network drive, implying potential latency.
  • Flexibility:

    • Swift detachment from one EC2 instance to another.
  • Zone Binding:

    • Tied exclusively to an Availability Zone.
  • Migration Process:

    • Migration to another zone involves snapshot creation.
  • Capacity and Billing:

    • Provisioned capacity in GBs and IOPS (billed for all provisioned capacity).

    • Capacity augmentation possible over time.

2. Visualizing EBS Volumes πŸŒπŸ–ΌοΈ

  • Example Scenario:

    • Multiple EBS Volumes with varying capacities.

    • Unattached status highlighted.

EBS Management: Deletion Control and Snapshots πŸš«πŸ“Έ

1. Delete on Termination Attribute πŸ”„πŸ”’

  • Functionality:

    • Governs EBS behavior upon EC2 instance termination.

    • Default setting deletes the root EBS volume (enabled).

    • Attached volumes are not deleted by default (disabled).

    • Customizable via AWS console or CLI.

  • Use Case:

    • Preserve root volume integrity during instance termination.

2. EBS Snapshots: Time-Travel for Data βŒ›πŸ“·

  • Snapshot Mechanics:

    • Backup creation capturing EBS volume state.

    • Snapshot operation feasible without detaching the volume (recommended).

    • Snapshots portable across AZs or Regions.

  • Visual Representation:

    • Example showcasing EBS volumes, snapshot creation, and restoration.

Advanced Features of EBS Snapshots πŸ”„πŸš€

1. Snapshot Archive πŸ—ƒοΈπŸ’Ύ

  • Archiving Process:

    • Transition a snapshot to a cost-effective "archive tier."

    • Restoration duration: 24 to 72 hours.

  • Benefits:

    • 75% cheaper archiving solution.

2. EBS Snapshots Recycle Bin β™»οΈπŸ—‘οΈ

  • Recycle Bin Setup:

    • Rules configuration for retaining deleted snapshots.

    • Retention options: 1 day to 1 year.

  • Accidental Deletion Savior:

    • Recovery possible after inadvertent snapshot deletion.

3. Fast Snapshot Restore (FSR) πŸš€βš‘

  • Snapshot Initialization Optimization:

    • Forceful full initialization of a snapshot.

    • Eliminates latency upon initial usage.

    • Note: This optimization incurs additional costs.

Conclusion: Navigating EC2 Storage Terrain πŸ§­πŸ’½

Mastering Amazon EC2 instance storage intricacies empowers you to craft resilient and efficient architectures. Whether managing EBS volumes, fine-tuning deletion attributes, or harnessing advanced snapshot features, a deep understanding of these storage elements is pivotal. Navigate the AWS storage realm with confidence, ensuring your instances persist, recover, and perform optimally. πŸš€πŸ”—

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