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Azure CVO HA - 由于 Azure Storage Account 连接问题,SK 进程中云共享 HA 上的磁盘被删除或缺失导致 PANIC

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cloud-volumes-ontap-cvo
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适用于

  • Azure 上的 Cloud Volumes ONTAP (CVO) HA
  • 高可用性 (HA)
  • 根磁盘 (Azure CVO HA 上的页 Blob) 丢失或已删除
  • 存储帐户可达性

问题

Azure CVO HA 崩溃并无法启动。
Panic String: DIAGNOSTIC PANIC Disk deleted or missing on cloud shared HA in SK process config_thread on release 9.9.0 (C)
 
EMS.log
 
PHO_SCAN: pha.obj.scanfailure:ERROR]: ONTAP could not get a list of objects from the object store, 'object_store0', at 'rootsaxxxxxx.blob.core.windows.net', using IP address '10.x.x.x' with error: Operation Timedout.
PHO_SCAN: pha.obj.scansuccess:NOTICE]: ONTAP successfully retrieved a list of objects from the object store, 'object_store0'.
 

原因

  • Azure CVO HA 对根磁盘和数据磁盘使用页面 blob,这些页面 blob 通过 HTTPs/HTTP 从 ONTAP 端口 e0d IP(内部)使用 Azure 存储帐户 FQDN(示例:rootsaxxxxxx.blob.core.windows.net)进行访问。
  • 存储帐户 FQDN 到 IP 的解析通过 Azure 公共 DNS、自定义 DNS 或 admin SVM 上的主机条目完成,并在 ONTAP 中进行维护,因为根卷需要在启动期间可用。
  • Microsoft Azure 确认,存储帐户与根 blob 的连接丢失是由于其后端维护存储帐户实时迁移时遇到问题所致。

解决方案

一旦存储帐户的连接问题得到解决,Azure CVO HA 将启动,因为根磁盘(页面 blob)可用。

内部参考

内部参考文本

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