AHV -关闭集群-维护或重新定位

  • 2019年11月15日
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徽章 ＋４
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Nutanix提供了一个分布式数据和控制平面，所以启动、停止和优雅地关闭集群是相当容易的。甚至，在异常/糟糕的关闭中，Nutanix集群也有强大的自愈能力——因为所有的数据和元数据都分布在集群中，这大大减少了数据损坏或数据丢失的机会。

然而，由于Nutanix集群托管业务关键数据和应用程序，它确实是重要的以确保所有的服务停止在一个优雅的方式和所有数据+元数据是一致的。这允许稍后集群以健康可用的状态重新启动。

可能有几个原因优雅地关闭一个正在运行的Nutanix AHV & AOS集群．当关闭一个Nutanix集群时，需要遵循以下顺序:

  1. 用户关闭虚拟机
  2. AOS关机-数据服务/集群组件
  3. CVM关闭
  4. 虚拟机监控程序关闭

在这篇文章中，我们将关注在AHV (Acropolis Hypervisor)下运行的Nutanix集群的关机过程。

检查及考虑的要点:

  1. 检查您的Nutanix群集>数据保护上是否有任何正在运行的复制
  2. 检查任何正在运行的备份，并确保它们成功完成
  3. 没有运行软件或固件升级正在进行AOS项目
  4. 运行ncc(nutanix群集检查)实用程序，并确保没有红旗/警报
  5. 你使用Nutanix Files吗?然后文件(AFS)将需要关闭第一。

关闭AHV和AOS集群的步骤


执行该操作前，请先通过SSH协议登录Controller虚拟机，执行以下命令:
ncc health_checks run_all．如果有的话错误或失败，查看相关的KBs和联系人Nutanix支持如果需要。

  1. 关闭Nutanix集群中的所有用户虚拟机
  2. 关闭所有AFS集群虚拟机如果适用的话
  3. 停止Nutanix集群。
  4. 关闭集群中的每个节点。
  5. 在完成维护或其他任务后，需要对节点上电并启动集群。

请浏览“关闭AHV集群进行维护或搬迁KB阅读更多关于如何用一个命令关闭多个用户虚拟机的信息。

Nutanix offers a\u00a0distributed data and control plane<\/strong>, so it\u2019s fairly easy to start, stop and graceful shutdown a cluster. Even, in abnormal \/ dirty shutdowns, Nutanix cluster has powerful self-healing capabilities - as all data & meta-data is distributed across the cluster which significantly reduces the chances for data corruption or data-loss.\u00a0<\/p>

However, as a Nutanix Cluster hosts business critical data and applications, it is important<\/strong> to ensure all services<\/strong> stop in a graceful manner\u00a0and all data + meta-data is consistent.\u00a0<\/strong>This allows the cluster to be restarted in a healthy - usable state later.<\/p>

There can be several reasons to gracefully shutdown<\/strong> a running Nutanix AHV & AOS Cluster<\/strong>. When shutting down a Nutanix Cluster, following order needs to be followed:<\/p>

  1. User VMs Shutdown<\/strong><\/li>
  2. AOS Shutdown - Data services \/ Cluster components<\/strong><\/li>
  3. CVM Shutdown<\/strong><\/li>
  4. Hypervisor Shutdown<\/strong><\/li><\/ol>

    In this post, we will focus on the shutdown process for a Nutanix Cluster running with AHV (Acropolis Hypervisor).<\/p>

    Points to Check and Consider:<\/h3>
    1. Check for any running replications on your Nutanix Cluster > Data Protection<\/li>
    2. Check for any running backups and ensure they finish successfully<\/li>
    3. There are no running software<\/strong> or firmware upgrades <\/strong>in progress for AOS<\/li>
    4. Run ncc<\/code> (nutanix cluster check) utility and ensure there are no red flags \/ alerts<\/li>
    5. Do you use Nutanix Files? then Files (AFS) will need to be shutdown <\/a>first.<\/li><\/ol>

      \u00a0<\/h3>

      Steps to Shutdown - AHV & AOS Cluster<\/h3>


      Prior to the scheduled shutdown,\u00a0SSH to a Controller VM and run:
      ncc health_checks run_all<\/code>. If there are any errors or\u00a0failures<\/strong>, Check the relevant KBs and contact       Nutanix Support<\/a> if required.<\/p>

      1. Shut down all the user VMs in the Nutanix cluster<\/li>
      2. Stop all AFS cluster VMs<\/a> if applicable<\/li>
      3. Stop the Nutanix cluster.<\/li>
      4. Shut down each node in the cluster.<\/li>
      5. After completing maintenance or other tasks, power on the nodes and start the cluster.<\/li><\/ol>

        Please visit the \u201cShutting Down an AHV Cluster for Maintenance or Relocation<\/a>\u201d KB to read more about how you can shutdown several user virtual machines with a single command.<\/p>","quoteUsername":"Mutahir","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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