具有用户创建的检查点的 Hyper-VM 的 RCT 备份失败，并显示“Changeblocks is not properly aligneds”

Summary: 知识库文章，讨论在具有自定义创建（非 Avamar）检查点的虚拟机上 RCT 备份失败。

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Symptoms

使用用户创建的（非 Avamar 创建/恢复）检查点的 Hyper-V 虚拟机备份失败，并显示类似于以下内容的错误：
 

avhypervvss Error : The plugin on remote client DELL1 (192.168.1.3) terminated with code 10020: completed with errors, client log should be examined
avhypervvss Error : 1 remote client(s) failed to complete operation on the remote file targets
avhypervvss Error : Failed to backup Virtual Machine 'EMCPC'


 

从 DELL1 节点：

avhypervvss Error : Changeblocks are not properly aligned to parent disk(\\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX). Full backup is recommended as Incremental cannot be promoted to Full at this stage of program.
avhypervvss Error : Changeblocks are not properly aligned to parent disk(\\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-E.VHDX). Full backup is recommended as Incremental cannot be promoted to Full at this stage of program.
avhypervvss Error : Backup extent creation failed for chain \\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX
avhypervvss Error : Backup extent creation failed for chain \\?\C:\ClusterStorage\Volume6\EMCPC\EMCPC-E.VHDX
...
avhypervvss Error : Failed to parse disk chain C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDX
avhypervvss Error : Backup stream generator encountered an internal error. Failed to stream file '00000226\C:\ClusterStorage\Volume6\EMCPC\EMCPC-C.VHDXguid'.
avhypervvss Error : Processing workorder Daily - 8_00pm to 05_59am-DR VM Group 01-1662598800011#301 (pid:3032-Hyper-V VSS) in stream mode failed.



从 winclustersvc.log 文件（位于作为 EMC 备份代理服务的活动所有者的 C：\Program Files\avs\var 文件夹中）：

 

winclustersvc WARN: WMI API returned error: 'Failed to get the disk information.

The Hyper-V Virtual Machine Management service encountered an unexpected error: There is no change tracking data available associated with the specified change tracking identifier. (0xC03A0030).'
winclustersvc INFO: System.Management.ManagementException: Failed to get the disk information.

The Hyper-V Virtual Machine Management service encountered an unexpected error: There is no change tracking data available associated with the specified change tracking identifier. (0xC03A0030).
at EMC.BRS.HypervProxy.Common.WmiUtilities.ValidateOutput(ManagementScope scope, ManagementBaseObject outputParameters, Boolean throwIfFailed, Boolean printErrors)
at EMC.BRS.WMI.Virtualization.HypervDataProvider.GetRCTExtentsforVm(String vhdPath, String RCTId, UInt64 vhdSize, HypervVm& vm, Boolean bPromoteToFullOnExtentsError)

 

Cause

旧热修复程序（例如 v19.4 的 #335554）中可能存在代码错误。

Resolution

升级到以下 Avamar 插件版本的最新热修复程序：

适用于版本 19.4.100-124 的 Avamar Hyper-V VSS 插件
热修复程序 #337450 的 337285热修复程序 #337450 适用于 Avamar Hyper-V VSS 插件

版本 19.8.100-83 的 Avamar Hyper-V VSS 插件
#337654 7.100-82 遵循戴尔知识库文章 211510， Avamar：Hyper-V VSS 插件 — 配置和安装版本 19.4 及更高版本的最新累积热修复程序，用于安装或升级最新的 Hyper-V 插件累积热修复

程序的详细过程 解决方法涉及通过 Hyper-V Manager 或 PowerShell：

https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/checkpoints 将检查点合并或删除回虚拟机

Affected Products

Avamar Plug-in for Hyper-V VSS, Avamar Server
Article Properties
Article Number: 000206345
Article Type: Solution
Last Modified: 30 May 2023
Version:  2
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