<p class="shortdesc">若实例资源远远多于业务需求，您可以对实例进行降配操作。</p> <section class="section prereq" id="Instance_Reduction__prereq_hj2_313_rvb"><div class="tasklabel"><h2 class="doc-tairway">前提条件</h2></div> <ol class="ol" id="Instance_Reduction__ol_zst_313_rvb"> <li class="li">云服务器ECS实例状态处于已关机，运行中或重启中的云服务器ECS实例无法执行降配操作。关机后会中断您的业务，建议您在业务低谷时执行降配操作，可参考<a class="xref" href="/ssr/help/compute/ecs/manual.Instance_Manage.State_Management.Shutdown_Instance" target="_blank" rel="external noopener">关机实例</a>。</li> <li class="li">实例降配只能选择低于当前配置的实例规格，如果当期实例规格为该产品系列最低配置，将无法支持降配。</li> </ol> </section> <section class="section attention" id="Instance_Reduction__xty_c13_rvb"><div class="tasklabel"><h2 class="doc-tairway">注意事项</h2></div> <ol class="ol" id="Instance_Reduction__ol_nt1_g13_rvb"> <li class="li">降配时只能降低实例规格，即同时降低CPU和内存，不能单独降低其中一个配置。</li> <li class="li">仅支持同一实例类型不同实例规格的降配，不支持不同实例类型之间的降配，例如，计算型和通用型实例类型不能互相降配。</li> <li class="li">CPU大于等于16C的实例规格降配不能低于16C16G。</li> </ol> </section> <section><div class="tasklabel"><h2 class="doc-tairway">操作步骤</h2></div><ol class="ol steps"><li class="li step stepexpand"> <span class="ph cmd">登录<a class="xref" href="https://www.ocftcloud.com/console/ecs/overview" target="_blank" rel="external noopener">云服务器ECS控制台</a>。</span> </li><li class="li step stepexpand"> <span class="ph cmd">单击左侧导航栏<span class="ph uicontrol">实例</span>，进入<span class="ph uicontrol">实例管理</span>页面。</span> </li><li class="li step stepexpand"> <span class="ph cmd"> 选择目标地域，在目标实例操作列单击<span class="ph menucascade"><span class="ph uicontrol">更多</span><abbr> > </abbr><span class="ph uicontrol">实例设置</span><abbr> > </abbr><span class="ph uicontrol">降配</span></span>。</span> <div class="itemgroup info"><img class="image" id="Instance_Reduction__image_gxb_rzh_rvb" src="https://obs-cn-shanghai.fincloud.pinganyun.com/pacloud/20232006152128-154f5ec29b90.png" width="800"></div> </li><li class="li step stepexpand"> <span class="ph cmd">弹出<span class="ph uicontrol">降级实例配置</span>对话框，选择目标降配实例规格。</span> <div class="itemgroup info"><img class="image" id="Instance_Reduction__image_kc2_5zh_rvb" src="https://obs-cn-shanghai.fincloud.pinganyun.com/pacloud/20232006152128-1666418e9b96.png"></div> </li><li class="li step stepexpand"> <span class="ph cmd">单击<span class="ph uicontrol">确认</span>，进入<span class="ph uicontrol">订单确认</span>页面。</span> </li><li class="li step stepexpand"> <span class="ph cmd">单击<span class="ph uicontrol">确认降配</span>，进入支付结果页面。</span> <div class="itemgroup info"> <div class="note note note_note" id="Instance_Reduction__note_cc1_513_rvb"><span class="note__title">说明：</span> <ul class="ul" id="Instance_Reduction__ul_gvk_513_rvb"> <li class="li">CPU大于等于16C的实例降配不能低于规格16C16G。</li> <li class="li">不支持不同实例类型之间的降配。</li> </ul> </div> </div> </li></ol></section> <section class="section result" id="Instance_Reduction__result_vg2_v13_rvb"><div class="tasklabel"><h2 class="doc-tairway">执行结果</h2></div> <p class="p">单击<span class="ph uicontrol">管理控制台</span>，可以返回云服务器ECS控制台，单击目标实例名称，可以在<span class="ph menucascade"><span class="ph uicontrol">实例详情</span><abbr> > </abbr><span class="ph uicontrol">基本信息</span></span>中查看到实例类型已经降配。</p> </section>