Manually create a backup of a healthy etcd cluster and check to see if the backup was created successfully.
Backups of healthy etcd clusters can be used to restore the cluster if it becomes unhealthy at any point.
The commands in this procedure can be run on any master node (ncn-mXXX) or worker node (ncn-wXXX) on the system.
A healthy etcd cluster is available on the system. See Check the Health of etcd Clusters.
Create a backup for the desired etcd cluster.
The example below is backing up the etcd cluster for the Boot Orchestration Service (BOS) named wednesday-manual-backup.
/opt/cray/platform-utils/etcd/etcd-util.sh create_backup cray-bos wednesday-manual-backup
Example output:
Taking snapshot from cray-bos-bitnami-etcd-0...
Pushing newly created snapshot /snapshots/cray-bos-bitnami-etcd/db-2023-03-10_23-38 to S3 as wednesday-manual-backup for cray-bos
upload: snapshots/cray-bos-bitnami-etcd/db-2023-03-10_23-38 to s3://etcd-backup/cray-bos/wednesday-manual-backup
Verify the newly created backup is available in S3:
/opt/cray/platform-utils/etcd/etcd-util.sh list_backups cray-bos
Example output:
cray-bos/db-2023-03-10_21-00
cray-bos/db-2023-03-10_22-00
cray-bos/db-2023-03-10_23-00
cray-bos/wednesday-manual-backup