Recovering from Storage Node failures

The procedure for recovering a failed Storage Node depends on the type of failure and the type of Storage Node that has failed.

Use this table to select the recovery procedure for a failed Storage Node.

Issue Action Notes
More than one Storage Node has failed. Contact technical support. Recovering more than one Storage Node might affect the integrity of the Cassandra database. Technical support can determine when it is safe to begin recovery of a second Storage Node.
A second Storage Node has failed less than 15 days after a Storage Node failure or recovery.

(This includes the case where a Storage Node fails while recovery of another Storage Node is still in progress.)

Contact technical support.
A Storage Node has been offline for more than 15 days. Recovering a Storage Node that has been down more than 15 days This procedure is required to ensure Cassandra database integrity.
An appliance Storage Node has failed.

Recovering a StorageGRID appliance Storage Node

The recovery procedure for appliance Storage Nodes is the same for all failures.
One or more storage volumes have failed, but the system drive is intact

Recovering from storage volume failure where the system drive is intact

This procedure is used for virtual Storage Nodes.
The system drive has failed. Storage volumes might have failed.

Recovering from system drive failure and possible storage volume failure

The node replacement procedure varies depending on the deployment platform.