Restoring from a snapshot of your IBM® Db2 Warehouse database

You can restore from a snapshot copy of your database by stopping the Db2® Warehouse services and container, replacing your data directory with the snapshot, and then resuming database operations.

About this task

To perform this task, you require root authority.

Cross-platform backups and restores are not supported. For example, if you take a snapshot backup on an x86_64 system, you cannot use that backup to restore to a ppc64le system, or vice versa.

Procedure

On the head node, stop the Db2 Warehouse services by issuing the following Docker or Podman command:
```
docker exec –it Db2wh stop
```
```
podman exec –it Db2wh stop
```
On each node, stop the Db2 Warehouse container by issuing the following Docker or Podman command:
```
docker stop Db2wh
```
```
podman stop Db2wh
```
Use the appropriate commands to replace the /mnt/clusterfs directory with the snapshot backup.
On each node, start the Db2 Warehouse container and services by issuing the following Docker or Podman command:
```
docker start Db2wh
```
```
podman start Db2wh
```