An archive operation consists of a defined data flow between the StorageGRID system and the client.
If the ILM policy requires that a copy of object data be archived, the ILM engine, which is a component of the LDR service, sends a request to the Archive Node, which in turn sends a copy of the object data to the targeted archival storage system.
- The ILM engine sends a request to the ARC service to store a copy on archive media.
- The ARC service queries the ADC service for the best source location and sends a request to the source LDR service.
- The ARC service retrieves object data from the LDR service.
- The ARC service sends the object data to the archive media destination.
- The archive media notifies the ARC service that the object data has been stored.
- The ARC service notifies the ILM engine that the object data has been stored.