WSFC 维护模式操作粒度控制

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选择匿名的用户   2021-6-2 17:48   223   0
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<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 之前曾经在</span><a href="http://blog.51cto.com/wzde2012/1956533" style="font-family:&#39;黑体&#39;, SimHei;color:rgb(66,133,244);font-size:18px;"><span style="color:rgb(31,73,125);">WSFC日常管理操作篇</span></a><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);">和大家介绍过WSFC的维护模式,简单来说,从WSFC 2012开始,通过维护模式可以帮我们完成暂停节点,自动排水,自动回复的半自动化维护</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 回顾一下WSFC的维护模式运作流程,此处以WSFC 2012开始为例,在WSFC 2012之前,群集的维护模式仅能暂停节点,但无法自动移动负载</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 1.手动放置节点为暂停模式</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 2.节点根据群集角色优先级,<strong style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;">参考放置策略</strong>,依次排水处理群集负载至合适节点</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 3.负载都排水到该去的节点后,节点宣告为暂停,不接受任何负载的迁移</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);"> 4.维护完成后<strong style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;">参考放置策略</strong>故障回复负载至合适节点</span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);">知识补遗<br style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;"></span></p>
<p style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<ol style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><li> <p><span style="font-family:&#39;黑体&#39;, SimHei;font-size:18px;color:rgb(0,0,0);">如果在排水过程中,单台虚拟机无法执行移动,不会影响整体排水的进度,其它虚拟机和负载会继续正常执行排水,当排水结束后,报告排水失败状态<br style="font-family:&#39;Helvetica Neue&#39;, Helvetica, &#39;PingFang SC&#39;, &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, &#39;微软雅黑&#39;, A
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