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Target customers: customers who have short-term elastic resource requirements and require resource guarantee to ensure business operation. Features released: Elasticity Assurance allows you to pay a small assurance fee for guaranteed access to resources for a duration of one month up to five years. When you purchase an elasticity assurance, you must specify attributes such as zone and instance specifications. The system generates a private pool for the created elasticity assurance to reserve resources that match the specified attributes. For example, you can purchase an elasticity assurance to reserve resources of the ecs.c6.large instance type in Hangzhou Zone I. You can have guaranteed access to the reserved capacity in the private pool to create pay-as-you-go instances. Periodic short-term resource requirements: Elasticity Assurance guarantees the provision of resources when you want to scale your computing resources during a fixed period of time every day, week, or month. If you do not obtain the assured resource supply through Elasticity Assurance, your business will be affected. For example, a financial SaaS service provider requires a large amount of resources to perform an account check at the beginning of each month, or a rendering enterprise needs to process a number of rendering tasks at the beginning of each week. Occasional large resource requirements: Elasticity Assurance allows you to reserve resources for urgent use. This way, you can have fast access to resources and ensure business continuity in case of unexpected events. For example, Internet media companies need to report breaking news. Some enterprises need to reserve resources for disaster recovery. Elastic Assurance is suitable for these entities. Resource guarantee requirements during peak hours: Resources need to be reserved for key business during holidays, such as Double 11 and Spring Festival. For example, resources need to be guaranteed if enterprises launch promotional activities through live video streaming, ticket-grabbing, and giveaways.