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如何在我的 netapp 集群上设置故障转移?

[英]How do I set failover on my netapp clusters?

I have two clusters of NetApp (main and dr), in each I have two nodes.我有两个 NetApp 集群(main 和 dr),每个集群都有两个节点。

If one of the nodes in either cluster goes down, the other node kicks in and act as one node cluster.如果任一集群中的一个节点出现故障,另一个节点将启动并充当一个节点集群。 Now my question is, what happens when a whole cluster falls down due to problems of power supply?现在我的问题是,当整个集群由于电源问题而崩溃时会发生什么?

I've heard about "Metro Cluster" but I want to ask if there is another option to do so.我听说过“Metro Cluster”,但我想问一下是否还有其他选择。

It depends on what RPO you need.这取决于您需要什么 RPO。 Metrocluster does synchronous replication of every write and thus provides zero RPO (data loss) Metrocluster 对每次写入进行同步复制,因此提供零 RPO(数据丢失)

On the other hand you could use Snapmirror which basically takes periodic snapshots and stores them on the other cluster.另一方面,您可以使用 Snapmirror,它基本上会定期拍摄快照并将它们存储在另一个集群上。 As you can imagine you should expect some data loss.正如您可以想象的那样,您应该预计会丢失一些数据。

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