Atlas Device Sync optimizes sync storage by minimizing the amount of Device Sync metadata stored in your Atlas clusters. However, these strategies do not reduce the overall size of the Atlas cluster.
To reclaim disk space in your cluster, you must compact the data on an Atlas volume. You can compact your Atlas volume by using the compact() command.
This method involves performing a failover on the cluster's primary node. To fully understand this process and to ensure that your cluster meets the minimum requirements to successfully handle a primary failover, we highly recommend that you first perform a primary failover test.
After successfully testing failover of your primary node, follow these steps:
Run the compact() command on each of the cluster's secondary nodes, one at a time.
Perform a failover on the primary mode, then run
compact()on the primary node.
Note
If you experience issues running the compact() command, raise a
Support case.