Help Center/ Elastic Cloud Server/ Drawer/ Purchasing an ECS/ Advanced Settings/ Tag
Updated on 2025-10-30 GMT+08:00
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Tag

Description

  • Tag

    A tag identifies an ECS. Tags help you identify and manage your ECSs.

    You can add tags to an ECS during or after ECS creation. On the Tags tab of the ECS details page, you can add up to 10 tags for each ECS.

    Then, you can quickly search for and filter specific ECSs by tag. For example, you can define a set of tags for resources in your account to track the owner and usage of each resource. This makes resource management easier.

    For details, see Searching for Resources by Tag.

  • Tag scenarios

    Tags are used to identify cloud resources. When you have many cloud resources of the same type, you can use tags to classify cloud resources by dimension (for example, usage, owner, or environment).

    Figure 1 Example tags

    Figure 1 shows how tags work. In this example, two tags are assigned to each cloud resource. Each tag contains a key and a value that you define. The key of one tag is Owner, and the key of the other tag is Usage. Each tag has a value.

    You can quickly search for and filter specific cloud resources based on the tags added to them. For example, you can define a set of tags for resources in your account to track the owner and usage of each resource. This makes resource management easier.

  • Tag naming rules
    • Each tag consists of a key-value pair.
    • Each ECS can have up to 10 tags.
    • A tag key must be unique for each ECS and can have only one value.
    • A tag consists of a tag key and a tag value. Table 1 lists the tag key and value requirements.
      Table 1 Tag naming rules

      Parameter

      Rule

      Example

      Tag key
      • Cannot be left blank.
      • Must be unique for each ECS.
      • Contains a maximum of 36 characters.

      Organization

      Tag value
      • Contains a maximum of 43 characters.

      Apache
  • Tag-related operations
Parent Topic: Advanced Settings