s3 part demo

en/backup-to-aws-s3-using-br.md

@@ -424,7 +424,60 @@ You can also stop log backup by taking the same steps as in [Start log backup](#
 
 ### Compact Backup
 
+You can use a `CompactBackup` CR to compress log backup data into SST format, which accelerates Point in Time Restore (PiTR).
 
+This section builds on the previous example of log backup and introduces how to use compact log backup.
+
+1. In the `backup-test` namespace, create a `CompactBackup` CR named `demo1-compact-backup`.
+
+    ```shell
+    kubectl apply -f compact-backup-demo1.yaml
+    ```
+
+    The content of `compact-backup-demo1.yaml` is as follows:
+
+    ```yaml
+    ---
+    apiVersion: pingcap.com/v1alpha1
+    kind: CompactBackup
+    metadata:
+      name: demo1-compact-backup
+      namespace: backup-test
+    spec:
+      startTs: "***"
+      endTs: "***"
+      concurrency: 8
+      maxRetryTimes: 2
+      br:
+        cluster: demo1
+        clusterNamespace: test1
+        sendCredToTikv: true
+      s3:
+        provider: aws
+        secretName: s3-secret
+        region: us-west-1
+        bucket: my-bucket
+        prefix: my-log-backup-folder
+    ```
+
+    The `startTs` and `endTs` fields define the time range for the logs to be compacted by `demo1-compact-backup`. Any log that contains at least one write within this time range will be included in the compression process. As a result, the compacted data may include writes outside this time range.
+
+#### View the compact log backup status
+
+After creating the `CompactBackup` CR, TiDB Operator automatically starts compacting the log backup. You can check the backup status using the following command:
+
+  ```shell
+  kubectl get cpbk -n backup-test
+  ```
+
+From the output, you can find the status of the CompactBackup CR named demo1-compact-backup, similar to the following:
+
+  ```
+  NAME                   STATUS                   PROGRESS                                     MESSAGE
+  demo1-compact-backup   Complete   [READ_META(17/17),COMPACT_WORK(1291/1291)]   
+  ```
+
+If the STATUS field displays Complete, the compact log backup process has finished successfully.
 
 ### Backup CR examples
 

zh/backup-to-aws-s3-using-br.md

@@ -462,10 +462,18 @@ demo1-log-backup-s3        log      Stopped   ....
 
 创建好 `CompactBackup` CR之后，TiDB operator将会自动开始压缩日志备份。你可以通过如下命令查看备份状态：
 
+  ```shell
+  kubectl get cpbk -n backup-test
+  ```
 
+从上述命令的输出中，你可以找到描述名为 `demo1-compact-backup` 的 `CompactBackup` CR 的信息, 形式大致如下：
 
+  ```
+  NAME                   STATUS                   PROGRESS                                     MESSAGE
+  demo1-compact-backup   Complete   [READ_META(17/17),COMPACT_WORK(1291/1291)]   
+  ```
 
-
+如果 `STATUS` 字段显示为 `Complete` 则代表压缩日志备份已经完成。
 
 ### 备份示例