当源数据未被销毁时进行异步容灾failback

  • 2016年5月23日
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徽章 ＋5
你好,

我仍在深入研究异步DR功能。

据我所知，异步容灾将以一定的时间间隔从一个活跃的保护域将变更的块复制到一个不活跃的保护域。

假设现在，我关闭Site a以测试容灾进程。因此，我激活站点B保护域，注册虚拟机，并引导它们。到目前为止，一切顺利。

现在，我重新启动站点A，我想要返回失败。我关闭站点B和站点A上的所有虚拟机(如果有运行)，禁用站点A上的PD，并设置从站点B PD到站点A PD的复制，并运行手动同步。
这讲得通吗?

在发生故障转移后，这个副本是否只更改了数据?还是会完全同步?
    \n
    \nI'm still digging into Async DR functionality.
    \n
    \nAs I understand, Async DR will replicate changed blocks from Site A to Site B at given interval from an active protection domain to an inactive protection domain.
    \n
    \nLet's say now, I do a Site A shutdown to test the DR processes. I therefore activate site B protection domain, register the virtual machines, and boot them. So far, so good.
    \n
    \nNow, I restart site A, and I want to fail back. I shutdown all virtual machines on site B and Site A (if any running), deactivate PD on site A, and setup replication from Site B PD to site A PD, and run a manual Sync.
    \nDoes this make sense ?
    \n
    \nAnd will this copy only data changed since fail over occured ? or will it do a full sync ?","quoteUsername":"Superkikim","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

    1回复

    乔恩
    排名
    Userlevel 6
    徽章 + 29
    是的，听起来差不多。

    集群应该只复制已经改变的数据块，假设Site A“仍然完整”而没有重建(这可能是真实的容灾情况)
    JonKohler |技术总监，工程，Nutanix | Nutanix NPX #003, VCDX #116 | @JonKohler |如果有用请赞美!
    \n
    \ncluster should only replicate data blocks that have changed, assuming Site A is \"still intact\" and not rebuilt (which would be the case in a true DR situation, likely)","quoteUsername":"Jon","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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