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VMware Datastorea快照LUN和LUN显示

Summary: 有关VMware ESXi VMFS文件系统和LUN的常规信息

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Symptoms

VMware无法看到所有显示的VMFS卷,LUN不可访问,VMFS在出现重要RAID事件后不可访问等问题。

组成VMFS签名的其中一个组件已更改。通常,这是由于在其他SCSI ID上显示的VMFS造成的。这种情况有时也是由于某些Dell PERC固件升级造成的,也可能由重要RAID故障(例如在多磁盘故障后对驱动器重新标记等)造成。


与所有良好的故障诊断一样,您需要先了解情况,然后再采取任何措施。错误地对如何进行故障诊断仓促下结论可能会导致不必要的数据丢失或停机时间。

我们提供了VMFS卷管理指南,以及讨论可能情形的大量VMware知识库文章。在采取措施前阅读并了解所有可能的情形非常重要。

 

在进行任何更改之前,请阅读并了解VMware VMFS卷管理文档,因为某些配置可能会出现数据丢失。

一般说来,对于快照 - 正确的行为是您启用重新签名并重新扫描,然后显示LUN。对于以前未见过此LUN的DR群集,您应禁止对LUN拍摄快照,重新进行扫描。
注:**在生产环境中进行任何更改之前,最好在您自己的测试环境中对非关键数据执行测试,就像您为其他关键任务IT要素进行测试一样。**

下面是一些不错的通用故障诊断知识库文章的列表:





 



 
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  • How to verify whether you can implement re-signaturing when seeing snapshot LUNs(如何在看到快照LUN时验证是否可以实现重新签名)
    http://kb.vmware.com/kb/10042




 
  •  
  • LUN detected as a snapshot because LUN presentation settings were incorrect(由于LUN表示法设置不正确,因此LUN被检测为快照)
    http://kb.vmware.com/kb/1002351

  • Cannot access the LUN on EMC Clariion storage as it is marked as a deactivated snapshot(由于EMC Clariion存储上的LUN被标记为已停用的快照,因此无法对其进行访问)
    http://kb.vmware.com/kb/1003641


  • VMFS Datastores Are Inaccessible After Upgrading the PERC 4 Firmware on Systems with ESX Server 3.0.x(在安装ESX Server 3.0.x的系统上升级PERC 4固件后,无法访问VMFS数据存储)
    http://kb.vmware.com/kb/1001577

  • ESX hosts cannot see a new VMFS datastore presented by Dell MD3000i(ESX主机无法看到由Dell MD3000i提供的新VMFS数据存储)
    http://kb.vmware.com/kb/1005926

  • VMFS data store on local disk not available after BIOS upgrade(本地磁盘上的VMFS数据存储在BIOS升级后不可用)
    http://kb.vmware.com/kb/1004205

  • ESX Server limits access to the management LUN of the Dell MD3000 and Dell MD3000i storage devices(ESX服务器限制对Dell MD3000和Dell MD3000i存储设备的管理LUN的访问)
    http://kb.vmware.com/kb/1004069

 

Affected Products

Servers, PowerEdge
Article Properties
Article Number: 000139495
Article Type: Solution
Last Modified: 21 Feb 2021
Version:  3
Find answers to your questions from other Dell users
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Article Properties
Article Number: 000139495
Article Type: Solution
Last Modified: 21 Feb 2021
Version:  3
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.