Help Center/ Distributed Cache Service/ User Guide (Ally Region)/ Managing DCS Instances/ Managing Tags
Updated on 2025-12-29 GMT+08:00
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Managing Tags

Tags facilitate DCS instance identification and management.

You can add tags to an instance when creating it or add, modify, or delete tags on the details page of a created instance. Each instance can have a maximum of 20 tags.

A tag consists of a tag key and a tag value. Table 1 lists the tag key and value requirements.

Table 1 Tag key and value requirements

Parameter

Requirement

Tag key
  • Cannot be left blank.
  • Must be unique for the same instance.
  • Cannot start or end with a space.
  • Consists of a maximum of 128 characters.
  • Can contain letters of any language, digits, spaces, and special characters _.:=+-@
  • Cannot start with _sys_.

Tag value
  • Consists of a maximum of 255 characters.
  • Can contain letters of any language, digits, spaces, and special characters _.:/=+-@
  • Cannot start or end with a space.

Procedure

  1. Log in to the DCS console.
  2. Click in the upper left corner and select a region and a project.
  3. In the navigation pane, choose Cache Manager.
  1. Click the name of an instance.
  2. Choose Instance Configuration > Tags.

    View the tags of the instance.

  3. Perform the following operations as required:

    • Add a tag
      1. Click Add/Edit Tag. You can create new tags by entering Tag key and Tag value.

        If you have created predefined tags, select a predefined pair of tag key and value. To view predefined tags or create tags, click View predefined tags. You will be directed to the TMS console.

      2. Click OK.
    • Modify a tag

      Click Add/Edit Tag. In the displayed Add/Edit Tag dialog box, delete the desired key, add the key again, enter a new tag value, and click Add.

    • Delete a tag

      In the row containing the tag to be deleted, click Delete in the Operation column. Then click Yes.

Parent topic: Managing DCS Instances