This chapter covers Azure Reservations and Savings Plans. AZ-900 tests under 3.1.
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A simple way to picture Azure Reservations and Savings Plans
Committing to buying 100 items monthly gets you a bulk discount. Azure Reservations offer similar discounts for committing to resource use for 1 or 3 years.
Reservations commit to 1 or 3-year resource use, receiving large discounts (20-72% typically). Suitable for stable, predictable workloads.
Identify predictable resources
Determine which resources run consistently.
Purchase Reservations
Purchase 1 or 3-year commitments for those resources.
Apply discount
Discount applies automatically to matching resources.
A production database running 24/7 is perfect for a 3-year reservation, saving 60% versus pay-as-you-go.
Objective 3.1 expects understanding of Reservations for long-term cost savings.
Large discounts for 1-3 year commitments.
Suitable for stable workloads.
Higher upfront cost, lower ongoing cost.
Commitments to 1 or 3-year resource use that offer significant discounts (20-72% typically), suitable for predictable workloads.
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