Introducing ECS Purchase Options

Huawei Cloud provides multiple options for you to purchase ECSs.

**Table 1** Purchase options of ECSs
How to Purchase	Description
Purchasing an ECS in Quick Config Mode	Learn how to purchase an ECS in quick config mode. You can specify the billing mode, region, instance specifications, image, public network access, and purchase details to quickly purchase an ECS.
Purchasing an ECS in Custom Config Mode	Learn how to purchase an ECS in custom config mode. You can flexibly specify required parameters for your ECS, including the billing mode, instance specifications, image, storage, network, security group, and EIP.
Purchasing a Spot ECS	Learn how to purchase a spot ECS. Spot ECSs allow you to use spare ECS capacity which is available for less than the pay-per-use price. This is a good option if you want to enjoy the same performance at a lower price.
Purchasing a Spot Block ECS	Learn how to purchase a spot block ECS. Spot block ECSs allow you to use spare ECS capacity which is available for less than the pay-per-use price. This is a good option if you want to enjoy the same performance at a lower price.
Purchasing an ECS Using a Private Image	Learn how to purchase an ECS using a private image. A private image contains an OS, preinstalled public applications, and user's personal applications, saving the time for configuring the ECS repeatedly. This is a good option if you are accustomed to using certain OS and applications.
Purchasing ECSs Using Auto Launch Groups	Learn how to purchase ECSs using Auto Launch Groups. Auto Launch Groups consist of launch templates and auto launch groups. A launch template stores instance creation parameters (excluding the password) so that you can use it to batch create ECS instances with the same configurations. An auto launch group lets you customize configurations and rapidly create ECSs that are of different types, billed in different modes, and distributed across multiple AZs.
Purchasing an ECS in a Shared Subnet	Learn how to purchase an ECS in a VPC subnet shared by another account. This can unify resource management, improve efficiency, and reduce O&M costs.
Purchasing the Same ECS	Learn how to quickly purchase ECSs with the same configurations as an existing ECS.