<p class="shortdesc">本文主要介绍如何变更只读实例的计算规格。</p> <section class="section prereq" id="Upgrade_Read_Only_Spec__prereq_nwm_pzs_m5b"><div class="tasklabel"><h2 class="doc-tairway">前提条件</h2></div> <p class="p">您已成功创建只读实例，可参考<a class="xref" href="/ssr/help/database/MySQL/Guide.IM.CIns.CROIns" target="_blank" rel="external noopener">创建只读实例</a>。</p> </section> <section class="section context"><div class="tasklabel"><h2 class="doc-tairway">背景信息</h2></div> <p class="p">只读实例可独立于常规实例进行计算规格升级。您可以通过RDS管理控制台分别升级同城或远程只读实例的计算规格。</p> </section> <section><div class="tasklabel"><h2 class="doc-tairway">操作步骤</h2></div><ol class="ol steps"><li class="li step"> <span class="ph cmd">以资源组管理员身份登录<a class="xref" href="https://www.ocftcloud.com/console/rds/mysql" target="_blank" rel="external noopener">RDS-MySQL管理控制台</a>。</span> </li><li class="li step"> <span class="ph cmd">单击左侧导航栏<span class="ph uicontrol">RDS-MySQL</span>，进入<span class="ph uicontrol">云数据库管理</span>页面。</span> </li><li class="li step"> <span class="ph cmd">选择目标地域。</span> </li><li class="li step"> <span class="ph cmd">单击目标只读实例<span class="ph uicontrol">操作</span>列的<span class="ph uicontrol">管理</span>，选择<span class="ph uicontrol">容量管理</span>页签。</span> </li><li class="li step"> <span class="ph cmd">单击<span class="ph uicontrol">容量变更</span>。</span> </li><li class="li step"> <span class="ph cmd">在<strong class="ph b">计算规格</strong>区域，选择需要升级到的内存规格，单击<strong class="ph b">设置</strong>，进入<strong class="ph b">计算规格</strong>页面，单击<strong class="ph b">确定</strong>，进入<strong class="ph b">订单确认</strong>页面。</span> </li><li class="li step"> <span class="ph cmd">单击<strong class="ph b">确认降配/升配</strong>。</span> </li><li class="li step"> <span class="ph cmd">系统会发送验证码到您账号绑定的手机，填写验证码，并单击<strong class="ph b">确定</strong>。</span> </li></ol></section> <section class="section result"><div class="tasklabel"><h2 class="doc-tairway">执行结果</h2></div> <p class="p">在<span class="ph uicontrol">云数据库管理</span>页面，单击目标只读实例<span class="ph uicontrol">操作</span>列的<span class="ph uicontrol">管理</span>，选择<span class="ph uicontrol">容量管理</span>页签，在<span class="ph uicontrol">容量管理</span>区域，可查看只读实例的<span class="ph uicontrol">CPU</span>和<span class="ph uicontrol">内存</span>为目标值。</p> </section>