This topic describes general-purpose, dedicated-disk, and dedicated-host instance categories of ApsaraDB for MongoDB.
The top configuration of this category is a dedicated-host instance, which exclusively occupies all resources on a physical server.
|Business scenarios where databases are used as core systems, such as finance, e-commerce, government affairs, and large and medium-sized Internet services.|
For more information about instance specifications such as the number of vCPUs, memory, storage capacity, maximum number of connections, and IOPS, see Instance types.
For more information about the pricing of each instance type, see Billing items and pricing.
Change instance specifications
You can change the specifications of an instance. For more information about specific operations, see Configuration change overview.