Related Services

Figure 1 shows the relationships between CSS and other services.

Figure 1 Relationships between CSS and other services

**Table 1** Relationships between CSS and other services
Service	Description
Virtual Private Cloud (VPC)	CSS clusters are created in the subnets of a VPC. VPCs provide a secure, isolated, and logical network environment for your clusters. For details, see Creating a VPC User Guide.
Elastic Cloud Server (ECS)	In a CSS cluster, each node represents an ECS. When you create a cluster, ECSs are automatically created.
Elastic Volume Service (EVS)	CSS uses EVS to store index data. When you create a cluster, EVSs are automatically created for cluster data storage.
Object Storage Service (OBS)	Snapshots of CSS clusters are stored in OBS buckets. For details, see Object Storage Service User Guide.
Identity and Access Management (IAM)	IAM authenticates access to CSS. For details, see Identity and Access Management User Guide.
Cloud Eye	CSS uses Cloud Eye to monitor cluster metrics in real time. The supported CSS metrics include the disk usage and cluster health status. You can learn about the disk usage of the cluster based on the disk usage metric. You can learn about the health status of a cluster based on the cluster health status metric. For details, see Cloud Eye User Guide.
Cloud Trace Service (CTS)	With CTS, you can record operations associated with CSS for query, audit, and backtracking operations. For details, see Cloud Trace Service Guide.