You need snapshots to perform software upgrades and to restore your old data.
When you create DCD snapshots, they need to be stored on a machine other than the DCD. You define the location for the snapshot using the BIG-IQ® Centralized Management device.
If too much time elapses between the time you upgrade the data collection devices in your cluster, the cluster communication between data collection devices can fail. If the communication fails, some of the devices can fail to re-join the cluster. If one of the devices does not re-join the cluster, the cluster will not operate. To prevent this scenario, you need to restart the cluster before proceeding.
You can use the BIG-IQ® user interface to restore data collection device (DCD) snapshots.
|To restore from the most recent snapshot:||Next to Last Snapshot/Time, click Restore Latest.|
|To select the snapshot that you want to restore:||