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Knowledge Base

常见问题解答：vCenter High Availability (2148003)

Last Updated: 6/9/2020Categories: InformationalTotal Views: 1Language:
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此文档是由机器翻译完成。我们会努力提供最佳翻译版本，但本地化的内容可能会更新不及时。有关最新内容，请参见英文版本。如果您发现任何翻译错误，请在 KB 页面底部提供您的反馈。

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If you require additional help from technical support, please use Skyline Advisor to initiate a Log Assist to reduce time to upload logs. TSEs can also initiate logs to reduce effort.

Symptoms

免责声明：本文为 FAQ: vCenter High Availability 的翻译版本。尽管我们会不断努力为本文提供最佳翻译版本，但本地化的内容可能会过时。有关最新内容，请参见英文版本。

Purpose

本文提供有关 vCenter High Availability (VCHA) 的一些常见问题解答。vCenter HA 可保护 vCenter Server Appliance，使其避免出现主机和硬件故障。主动-被动架构可以大幅缩短修补 vCenter Server Appliance 时的停机时间。

VCHA 不是灾难恢复产品（例如 Site Recovery Manager 和 VMware vSphere Replication）。

有关详细信息，请参见 vSphere Availability guide 的“vCenter High Availability”部分。

Resolution

是否可以跨数据中心部署 vCenter HA 节点？

是。但是，主动节点、被动节点和见证节点之间的网络延迟必须少于 10 毫秒，并且至少使用 1 Gbps 的网络。此要求适用于复制流量的高带宽/低延迟网络。

是否可以更改被动节点的管理地址？

是。在 VCHA 的基本部署和高级部署中，都可以更改。有关更多详细信息，请参见 vSphere Availability guide 的“启动高级配置过程”中的步骤 6 或 vSphere Availability guide 的“使用基本选项配置 vCenter HA”部分中的步骤 7。

是否可以更改已启用 VCHA 的节点的主机名或 IP 地址？

否。启用 vCenter HA 后，即无法更改节点的地址或主机名。

是否可以在 VCHA 初始部署后禁用 SSH？

否。rsync 需要使用 SSH，它会在主动节点和被动节点之间复制文件。

如果主动节点和被动节点具有不同的管理 IP 地址，ESXi 主机会在 vCenter HA 故障切换时断开连接。

确保“vCenter Server 受管地址”未设置为 IP 地址。要验证“vCenter Server 受管地址”，请执行以下步骤：

登录到 vSphere Web Client。

选择“主机和群集”视图。

在左侧窗格中选择“vCenter Server”。

选择“配置”选项卡。

请确保突出显示“设置”下拉列表下的“常规”。

展开“运行时设置”。

确保“vCenter Server 受管地址”未设置为 IP 地址。

是否需要多个 vCenter Server 许可证才能使用 VCHA？

否。只需要一个 vCenter Server 许可证即可使用 VCHA。

VCHA 节点是否支持快照、克隆和 Fault Tolerance？

否。目前不支持在任何 VCHA 节点上使用这些操作。

注意：支持主动 VCHA 节点的映像级备份。还支持仅还原主动节点。请参见 https://docs.vmware.com/en/VMware-vSphere/6.5/vsphere-esxi-vcenter-server-651-availability-guide.pdf 中的“执行备份和还原操作”。

是否可以在没有负载平衡 PSC 配置的情况下部署 VCHA？
VCHA 需要负载平衡 PSC，除非 PSC 已嵌入到 vCenter Server Appliance 中。有关部署类型的详细信息，请参见 vSphere Availability guide 中的“vCenter HA 部署选项”。

是否可以将 vCenter HA 节点重新指向其他 PSC？
不支持重新指向 VCHA 集群中的 vCenter Server。在重新指向新 PSC 之前，必须禁用 VCHA。

Related Information

使用单独子网中的网络地址部署 vCenter High Availability

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