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什么是永久性缓存备份设备故障?

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适用场景

所有E系列平台

问题解答

如果对永久性缓存备份设备的诊断测试失败、则该设备将被视为不可用。只要永久性缓存备份设备的可用容量小于缓存内存的可用容量、所有卷都会更改为直写缓存。 

  • 此操作将生成一个恢复失败条目、指出缓存备份设备容量不足
  • 配置为允许写入缓存而不使用电池的卷不会受到影响

注意: 丢失永久性缓存备份设备可能不会发生原因使永久性存储的可用容量低于缓存内存的可用容量、尽管这种情况不太可能发生。在这种情况下、缓存不会受到影响。

追加信息

要解决此问题描述、需要更换发布此错误的控制器。

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