The disk of the ECS cloud server refers to the storage device on the cloud server. It is commonly used to store operating systems, applications, and data.

　　type:

　　System Disk: This is the main disk of the cloud server and is used to install the operating system and applications. The system disk is usually a persistent storage that can save data after the server is restarted or shut down.

　　Data Disk: This is an additional disk used to store data. It can be a standalone data store, or it can be mounted on a cloud server to store user-generated data or additional storage required by applications.

　　Features:

　　Persistence: Disk data is generally persistent and is not affected by server restarts or shutdowns unless the data is explicitly deleted or purged.

　　Scalability: Data disks can usually be expanded as needed to accommodate data growth or changes in capacity requirements.

　　Backup and snapshots: Some cloud service providers provide disk backup and snapshot functions, allowing users to regularly back up or create data snapshots to restore data when needed.

　　The role of disks in ECS cloud servers:

　　Running the operating system: The system disk contains the operating system that allows the server to start and run.

　　Storage of applications and data: Data disks are used to store applications and user data, providing additional storage space.

　　When choosing an ECS cloud server, you need to consider the type, capacity, and performance of the disk to meet the needs of server operation and data storage.