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Move the ADC service in StorageGRID

Contributors netapp-lhalbert netapp-pcarriga
PDFs

You can move the ADC service to another Storage Node on the same site.

Before you begin

  • You are signed in to the Grid Manager using a supported web browser.

  • You have Maintenance or Root access permission.

  • The source node contains the ADC service.

  • The target node doesn't contain the ADC service.

  • The target node is either a metadata-only or combined (metadata and object data) node.

  • The source node and target node are on the same site.

About this task

Use the Move ADC procedure to manually move the ADC service between Storage Nodes. For example, you might want to redistribute ADC services across nodes or move the ADC service to a higher-performance node.

This procedure moves the ADC, IDNT, ACCT, and RSM services from one Storage Node to another on the same site. The RSM, IDNT, and ACCT services are dependent on the ADC service, so they automatically move when the ADC service moves.

Note

  • You don't need to manually move the ADC service before converting a Storage Node to a data-only node or decommissioning a Storage Node. These procedures automatically move the ADC service when required. Refer to What is the ADC quorum? for details about the requirements.

  • StorageGRID moves the ADC service to the newest Storage Nodes that meet the requirements for hosting the service.
Steps

  1. Record the node IDs of the source and target nodes.

    In the Grid Management API, the source node ID is referred to as sourceNodeId. The target node ID is referred to as targetNodeId.

  2. From the top of the Grid Manager, select the help icon and select API documentation.

  3. Select Go to private API documentation.

  4. Select the POST /private/move-adc/start operation. Refer to Issue API requests for more information.

    During the procedure, the two nodes will reboot in sequence. The source node reboots first, followed by the target node.

  5. You can use GET /private/move-adc to monitor the procedure. If errors occur, select POST /private/move-adc/retry to retry the procedure.

  6. Download a recovery package after completing this procedure.