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<p style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', 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:'黑体', 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:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', SimHei;font-size:18px;color:rgb(0,0,0);"> 4.维护完成后<strong style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<p style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><span style="font-family:'黑体', SimHei;font-size:18px;color:rgb(0,0,0);">知识补遗<br style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;"></span></p>
<p style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><br></p>
<ol style="font-family:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;font-size:16px;color:rgb(51,51,51);"><li> <p><span style="font-family:'黑体', 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:'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', A |
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