<p>You can add instances to an auto scaling group manually. Manually added instances are under a protected status by default, while automatically added instances are not&nbsp; and need to be set to be under a protected status. Under the protected status, instances will not be moved out of the auto scaling group by Auto Scaling activities and are therefore protected.</p> <p><span style="font-size:16px"><strong>Prerequisite</strong></span></p> <p>1. The ECS instance must be in the same region as the auto scaling group.</p> <p>2. The ECS instance has not been added into another auto scaling group.</p> <p>3. The ECS instance must be under the status of running.</p> <p>4. The auto scaling group must be under the started status, and there must be no on-going auto scaling activities in the auto scaling group.</p> <p><span style="font-size:16px"><strong>Procedure</strong></span></p> <p>1. Log in to the <a href="https://pinganyun.com/ac/login?i=%2Fconsole%2FautoScaling%2Flist" target="_blank">AS Console</a>.&nbsp;</p> <p>2. Click<strong> Auto Scaling Group</strong> and enter the<strong> Auto Scaling List</strong> page, and then click the target region.</p> <p>3. Click the name of the target auto scaling group and enter the <strong>Auto Scaling Detail</strong> page.</p> <p>4. Click <strong>Manually add</strong> at the right side<strong> </strong>of the<strong> Instances List </strong>section.</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201504114835-1260cd339d98.png" style="height:516px; width:800px" /></p> <p>5. On the pop-up <strong>Manually add ECS</strong> page, select the ECS instances to be added.</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20201504114902-1ba93ece965a.png" style="height:307px; width:800px" /></p> <p>6. Click <strong>Confirm</strong>.</p> <p><span style="font-size:16px"><strong>Result</strong></span></p> <p>&ldquo;<strong>Operation succeeded</strong>&rdquo; will appear at the bottom of the page, and you can view the instance just added in the <strong>Instances List </strong>section.</p> <p>&nbsp;</p>