文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 [AWS SDK 範例](https://github.com/awsdocs/aws-doc-sdk-examples)。

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 搭配使用 `EnterStandby` 與 CLI
<a name="auto-scaling_example_auto-scaling_EnterStandby_section"></a>

下列程式碼範例示範如何使用 `EnterStandby`。

------
#### [ CLI ]

**AWS CLI**  
**將執行個體移至待命模式**  
此範例將指定的執行個體置於待命模式。這對於更新或故障診斷目前服務中的執行個體非常有用。  

```
aws autoscaling enter-standby \
    --instance-ids i-061c63c5eb45f0416 \
    --auto-scaling-group-name my-asg \
    --should-decrement-desired-capacity
```
輸出：  

```
{
    "Activities": [
        {
            "ActivityId": "ffa056b4-6ed3-41ba-ae7c-249dfae6eba1",
            "AutoScalingGroupName": "my-asg",
            "Description": "Moving EC2 instance to Standby: i-061c63c5eb45f0416",
            "Cause": "At 2020-10-31T20:31:00Z instance i-061c63c5eb45f0416 was moved to standby in response to a user request, shrinking the capacity from 1 to 0.",
            "StartTime": "2020-10-31T20:31:00.949Z",
            "StatusCode": "InProgress",
            "Progress": 50,
            "Details": "{\"Subnet ID\":\"subnet-6194ea3b\",\"Availability Zone\":\"us-west-2c\"}"
        }
    ]
}
```
如需詳細資訊，請參閱《Amazon EC2 Auto Scaling 使用者指南》**中的 [Amazon EC2 Auto Scaling 執行個體生命週期](https://docs.aws.amazon.com/autoscaling/ec2/userguide/detach-instance-asg.html)。  
+  如需 API 詳細資訊，請參閱《AWS CLI 命令參考》**中的 [EnterStandby](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/autoscaling/enter-standby.html)。

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**範例 1：此範例將指定的執行個體置於待命模式，並減少所需的容量，如此 Auto Scaling 就不會啟動替代執行個體。**  

```
Enter-ASStandby -InstanceId i-93633f9b -AutoScalingGroupName my-asg -ShouldDecrementDesiredCapacity $true
```
**輸出：**  

```
ActivityId           : e36a5a54-ced6-4df8-bd19-708e2a59a649
AutoScalingGroupName : my-asg
Cause                : At 2015-11-22T15:48:06Z instance i-95b8484f was moved to standby in response to a user request,
                       shrinking the capacity from 2 to 1.
Description          : Moving EC2 instance to Standby: i-95b8484f
Details              : {"Availability Zone":"us-west-2b","Subnet ID":"subnet-5264e837"}
EndTime              : 
Progress             : 50
StartTime            : 11/22/2015 7:48:06 AM
StatusCode           : InProgress
StatusMessage        :
```
**範例 2：此範例將指定的執行個體置於待命模式，而不會減少所需的容量。Auto Scaling 會啟動替代執行個體。**  

```
Enter-ASStandby -InstanceId i-93633f9b -AutoScalingGroupName my-asg -ShouldDecrementDesiredCapacity $false
```
**輸出：**  

```
ActivityId           : e36a5a54-ced6-4df8-bd19-708e2a59a649
AutoScalingGroupName : my-asg
Cause                : At 2015-11-22T15:48:06Z instance i-95b8484f was moved to standby in response to a user request.
Description          : Moving EC2 instance to Standby: i-95b8484f
Details              : {"Availability Zone":"us-west-2b","Subnet ID":"subnet-5264e837"}
EndTime              : 
Progress             : 50
StartTime            : 11/22/2015 7:48:06 AM
StatusCode           : InProgress
StatusMessage        :
```
+  如需 API 詳細資訊，請參閱《AWS Tools for PowerShell Cmdlet 參考 (V4)》**中的 [EnterStandby](https://docs.aws.amazon.com/powershell/v4/reference)。

**Tools for PowerShell V5**  
**範例 1：此範例將指定的執行個體置於待命模式，並減少所需的容量，如此 Auto Scaling 就不會啟動替代執行個體。**  

```
Enter-ASStandby -InstanceId i-93633f9b -AutoScalingGroupName my-asg -ShouldDecrementDesiredCapacity $true
```
**輸出：**  

```
ActivityId           : e36a5a54-ced6-4df8-bd19-708e2a59a649
AutoScalingGroupName : my-asg
Cause                : At 2015-11-22T15:48:06Z instance i-95b8484f was moved to standby in response to a user request,
                       shrinking the capacity from 2 to 1.
Description          : Moving EC2 instance to Standby: i-95b8484f
Details              : {"Availability Zone":"us-west-2b","Subnet ID":"subnet-5264e837"}
EndTime              : 
Progress             : 50
StartTime            : 11/22/2015 7:48:06 AM
StatusCode           : InProgress
StatusMessage        :
```
**範例 2：此範例將指定的執行個體置於待命模式，而不會減少所需的容量。Auto Scaling 會啟動替代執行個體。**  

```
Enter-ASStandby -InstanceId i-93633f9b -AutoScalingGroupName my-asg -ShouldDecrementDesiredCapacity $false
```
**輸出：**  

```
ActivityId           : e36a5a54-ced6-4df8-bd19-708e2a59a649
AutoScalingGroupName : my-asg
Cause                : At 2015-11-22T15:48:06Z instance i-95b8484f was moved to standby in response to a user request.
Description          : Moving EC2 instance to Standby: i-95b8484f
Details              : {"Availability Zone":"us-west-2b","Subnet ID":"subnet-5264e837"}
EndTime              : 
Progress             : 50
StartTime            : 11/22/2015 7:48:06 AM
StatusCode           : InProgress
StatusMessage        :
```
+  如需 API 詳細資訊，請參閱《AWS Tools for PowerShell Cmdlet 參考 (V5)》**中的 [EnterStandby](https://docs.aws.amazon.com/powershell/v5/reference)。

------