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为什么启用自动交还是个好主意

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适用于

  • ONTAP 9

问题解答

这是一个最佳实践 设置,出于各种原因

  • 从 ONTAP 9.0 及更高版本开始,默认启用自动回给
  • > 95% 的因暂时性错误导致的 Panic/HA 存储故障通过系统重置得到解决
常见问题:

发生崩溃后的引导循环和重复接管-交还该怎么办?

  • ONTAP 不会尝试自动回馈节点,只要它不处于"Waiting for Giveback"状态
  • ONTAP 不会在否决时强制回馈
  • ONTAP 将(默认设置)尝试在 60 分钟内两次执行同一节点的自动回馈
    如果节点不稳定并发生第三次崩溃,自动回馈将被停用

如果加密密钥不同步怎么办?

  • ONTAP 将执行仅限 CFO 的交还,因为数据聚合的交还会自动否决

示例:

CLUSTER::> storage failover show-giveback

  (storage failover show-giveback)

Node                     Aggregate                Giveback Status

--------------         -----------------          ---------------------------------------------

Cluster-01                 CFO Aggregates           Done

                       Data01_Node2             Failed: Operation was vetoed by keymanager                                                  Check the event log

Cluster-02                                            No aggregates to give back

2 entries were displayed.

 

结束语:

在大多数环境中,特别是那些需要高可用性、最佳性能和最小管理开销的环境中,在 NetApp 存储系统上启用自动回馈是一种最佳实践

自动交还可确保系统能够从故障或维护事件中快速恢复,以最少的人工干预保持平衡和性能。

此外,通过自动化交还过程,可以最大限度地降低双重故障的风险,因为资源会及时返回到其原始状态,从而减少了两个节点可能发生故障的漏洞窗口。

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