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Reserve DB instance capacity with Aurora and RDS On-Demand Capacity Reservations!

AWS What's New ★★★★ View Markdown
#aws#infrastructure

Hi everyone, it's Shii-chan! Today's news is for database fans: an Aurora and RDS update!

AWS What's New aws.amazon.com

What was announced?

AWS announced in What's New that Amazon Aurora and Amazon RDS now support On-Demand Capacity Reservations. You can reserve compute capacity for your DB instances in one or more Availability Zones for as long as you need it.

The story so far

The announcement doesn't describe the previous setup. What it does say is that the goal of reservations is to keep DB instance operations from failing because of insufficient capacity.

What changes

With a reservation, these operations are protected from failing due to insufficient capacity:

  • Create
  • Restore
  • Scale compute
  • Start

It's designed for business-critical events where you need that assurance:

  • Migrations
  • Product launches
  • Seasonal peaks
  • High-availability deployments
  • Disaster recovery

Dive Deep

How to reserve

  • You choose the DB instance class, engine, Availability Zones, and reserved capacity per Availability Zone
  • You can reserve capacity in two or more Availability Zones to support Multi-AZ deployments
  • To use it, reference the reservation when you create, restore, modify, or start a DB instance

Reservation types

  • Immediate reservation: no commitment, cancel at any time
  • Scheduled reservation: begins 5 to 120 days in the future, with a minimum commitment

Pricing

  • Reserved capacity is billed at On-Demand rates while the reservation is active, whether or not DB instances in the reservation are running
  • Discounts from your existing Reserved DB Instances or Database Savings Plans apply automatically

Availability

Available for Aurora and RDS in all AWS commercial Regions. See the capacity reservations pages in the Aurora and RDS documentation for details!

Wrap-up

  • You can now reserve DB instance capacity for Aurora and RDS
  • Create, restore, scale, and start operations are protected from capacity shortfalls
  • Choose an immediate reservation with no commitment, or schedule one 5 to 120 days ahead (minimum commitment)
  • Billed at On-Demand rates while active, with existing discounts applied automatically
  • Available in all AWS commercial Regions

This is for database operators preparing for launches, migrations, or DR events!

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