# Managing Protected Instance Tags

#### Scenarios

Tags are identifiers of protected instances. You can add tags for protected instances, and classify and search the protected instances based on these tags.

You can add a maximum of 10 tags for each protected instance when creating the protected instance or add them on the details page of the created protected instance.

#### Context

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 | Example
--- | --- | ---

Tag key

- Cannot be left blank.
- Must be unique.
- Can contain a maximum of 36 characters.
- Can only consist of digits, letters, hyphens (-), and underscores (_).

Organization

Tag value

- Can contain a maximum of 43 characters.
- Can only consist of digits, letters, hyphens (-), and underscores (_).

Marketing

#### Procedure

You can perform the following operations based on tags:

- Adding tags for a protected instance when you create the protected instance

  For details, see Step 2: Create a Protected Instance.

- Searching for protected instances by tag on the protected instance list page
  1. Log in to the management console.
  2. Choose Storage > Storage Disaster Recovery Service.
  3. In the pane of the protection group, click Protected Instances.
  4. On the Protected Instances tab, click Search by Tag in the upper right corner of the protected instance list to expand the search area.
  5. Enter the tag of the protected instance to be searched.

     Both the tag key and tag value must be specified. When the tag key or tag value is matched, the system automatically shows the target protected instances.

  6. Click to add a tag.

     The system supports multiple tags and uses the intersection set of all tags to search for protected instances.

  7. Click Search.

     The system searches for protection instances by tags.

- Adding, deleting, modifying, and searching for tags on the Protected Instance Details page
  1. Log in to the management console.
  2. Choose Storage > Storage Disaster Recovery Service.
  3. In the pane of the protection group, click Protected Instances.
  4. Click the Protected Instances tab and click the name of the specified protected instance.

     The Protected Instance Details page is displayed.

  5. Click the Tags tab and perform desired operations.
     - View tags.

       You can view details of protected instance tags, including the number of tags and the key and value of each tag.

     - Add a tag.

       Click Add Tag in the upper left corner. In the displayed dialog box, enter the key and value of the tag to be added, and click OK.

     - Modify a tag.

       Locate the row containing the tag to be edited and click Edit in the Operation column. In the Edit Tag dialog box, change the key and value of the tag and click OK.

     - Delete a tag.

       Locate the row containing the tag to be deleted and click Delete in the Operation column. In the Delete Tag dialog box, click OK.

Parent topic: Managing Protected Instances