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Data storage markup

Written by
Updated at February 25, 2026

Note

This feature is in the Preview stage.

When marking up your data storage, you can do the following:

Assigning a domain

To assign or change a domain for one or multiple data storages:

  1. In the management console, select the resource folder you created the metadata catalog in.
  2. Select Yandex MetaData Hub.
  3. In the left-hand panel, select  Data Catalog.
  4. In the list that opens, select the metadata catalog with the data storages you need.
  5. In the left-hand panel, select  Data store.
  6. To assign a domain to a single data storage:
    1. Click next to the storage and select Set domain. If the domain is already assigned and you need to change it, select Edit domain.
    2. Select the domain from the list and click Save.
  7. To assign or change a domain for multiple data storages:
    1. Select one or more storages and click Set domain in the bottom panel.
    2. Select the domain from the list and click Save.

Note

With the metadata AI markup on, the AI assistant automatically creates domains and uses them to mark up your metadata. You can confirm, edit, or reject the domains suggested by your AI assistant by hovering over the AI icon next to the suggestion and selecting the action.

You can enable the AI markup when updating the metadata catalog or on its Overview page.

Changing terms

To assign or change terms for one or multiple data storages:

  1. In the management console, select the resource folder you created the metadata catalog in.
  2. Select Yandex MetaData Hub.
  3. In the left-hand panel, select  Data Catalog.
  4. In the list that opens, select the metadata catalog with the data storages you need.
  5. In the left-hand panel, select  Data store.
  6. Select one or more data storages and click Edit terms in the bottom panel.
  7. Select the terms from the list and click Save.

Note

With the metadata AI markup on, the AI assistant automatically creates glossaries and terms and uses them to mark up your metadata. You can confirm, edit, or reject the glossaries and terms suggested by your AI assistant by hovering over the AI icon next to the suggestion and selecting the action.

You can enable the AI markup when updating the metadata catalog or on its Overview page.

Changing tags

To assign or change tags for one or multiple data storages:

  1. In the management console, select the resource folder you created the metadata catalog in.
  2. Select Yandex MetaData Hub.
  3. In the left-hand panel, select  Data Catalog.
  4. In the list that opens, select the metadata catalog with the data storages you need.
  5. In the left-hand panel, select  Data store.
  6. Select one or more data storages and click Edit tags in the bottom panel.
  7. Select the tags from the list and click Save.

Note

With the metadata AI markup on, the AI assistant automatically creates classifications and tags and uses them to mark up your metadata. You can confirm, edit, or reject the classifications and tags suggested by your AI assistant by hovering over the AI icon next to the suggestion and selecting the action.

You can enable the AI markup when updating the metadata catalog or on its page, Overview.

Updating a description

  1. In the management console, select the resource folder you created the metadata catalog in.
  2. Select Yandex MetaData Hub.
  3. In the left-hand panel, select  Data Catalog.
  4. In the list that opens, select the metadata catalog with the data storage you need.
  5. In the left-hand panel, select  Data store.
  6. Click next to the storage and select Edit.
  7. Update the Description field and click Save changes.
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Getting data storage info
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Integrating the AI data analyst with Data Catalog