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. | You must contact technical support. |
Note: If more than one Storage Node that contains the ADC service fails at a site, you lose any pending platform service requests for that site.
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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.) |
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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. | 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 software-based Storage Nodes. |
The system drive has failed. | The node replacement procedure depends on the deployment platform and on whether any storage volumes have also failed. |