Table Of Contents


User Guide

First time using the AWS CLI? See the User Guide for help getting started.

[ aws . autoscaling ]



Moves the specified instances into the standby state.

For more information, see Temporarily Removing Instances from Your Auto Scaling Group in the Auto Scaling User Guide .

See also: AWS API Documentation


[--instance-ids <value>]
--auto-scaling-group-name <value>
--should-decrement-desired-capacity | --no-should-decrement-desired-capacity
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--instance-ids (list)

One or more instances to move into Standby mode. You must specify at least one instance ID.


"string" "string" ...

--auto-scaling-group-name (string)

The name of the Auto Scaling group.

--should-decrement-desired-capacity | --no-should-decrement-desired-capacity (boolean)

Specifies whether the instances moved to Standby mode count as part of the Auto Scaling group's desired capacity. If set, the desired capacity for the Auto Scaling group decrements by the number of instances moved to Standby mode.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.


To move instances into standby mode

This example puts the specified instance into standby mode:

aws autoscaling enter-standby --instance-ids i-93633f9b --auto-scaling-group-name my-auto-scaling-group --should-decrement-desired-capacity

The following is example output:

    "Activities": [
            "Description": "Moving EC2 instance to Standby: i-93633f9b",
            "AutoScalingGroupName": "my-auto-scaling-group",
            "ActivityId": "ffa056b4-6ed3-41ba-ae7c-249dfae6eba1",
            "Details": {"Availability Zone": "us-west-2a"},
            "StartTime": "2015-04-12T15:10:23.640Z",
            "Progress": 50,
            "Cause": "At 2015-04-12T15:10:23Z instance i-93633f9b was moved to standby in response to a user request, shrinking the capacity from 2 to 1.",
            "StatusCode": "InProgress"


Activities -> (list)

The activities related to moving instances into Standby mode.


Describes scaling activity, which is a long-running process that represents a change to your Auto Scaling group, such as changing its size or replacing an instance.

ActivityId -> (string)

The ID of the activity.

AutoScalingGroupName -> (string)

The name of the Auto Scaling group.

Description -> (string)

A friendly, more verbose description of the activity.

Cause -> (string)

The reason the activity began.

StartTime -> (timestamp)

The start time of the activity.

EndTime -> (timestamp)

The end time of the activity.

StatusCode -> (string)

The current status of the activity.

StatusMessage -> (string)

A friendly, more verbose description of the activity status.

Progress -> (integer)

A value between 0 and 100 that indicates the progress of the activity.

Details -> (string)

The details about the activity.