NVP vProxy：虚拟机备份失败 — 保存快照时出错：摘要作失败

NetWorker vProxy 用于保护 vSphere 环境。
虚拟机 （VM） 备份间歇性失败，并显示唯一错误“无法创建快照。重试后无法创建非停顿快照：保存快照时出错：摘要作失败。

受影响虚拟机的虚拟机VMware.log文件： 

YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DIGESTLIB-FILE : DigestLib_FlushMetaDataToDisk: digest header of parent digest has CID 0x31a5ac17 new CID of child digest is 0xb1f97036, parent digest may be corrupt, failing meta-data update on child.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000001-digest-sesparse.vmdk" : closed.
YYYY-MM-DDTHH:MM:SS Er(02) vcpu-0 - DISKLIB-LIB_CREATE   : DiskLibPostCreateChild: could not init child digest disk: Invalid parameter
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002-digest-sesparse.vmdk" : closed.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "vsan://520220993a84143a-59c06e4db535f859/03e5fe67-0e62-18cc-461c-043201a83710" : closed.
YYYY-MM-DDTHH:MM:SS Er(02) vcpu-0 - DISKLIB-LIB_CREATE   : DiskLibCreateChildSparse: Failed in post processing: A digest operation has failed
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "vsan://520220993a84143a-59c06e4db535f859/03e5fe67-0e62-18cc-461c-043201a83710" : open successful (1114113) size = 0, hd = 0. Type 20
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "vsan://520220993a84143a-59c06e4db535f859/03e5fe67-0e62-18cc-461c-043201a83710" : closed.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - OBJLIB-VSANOBJ: VsanObjUnlinkInt: Unlinking '/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710' -- 'vsan://520220993a84143a-59c06e4db535f859/03e5fe67-0e62-18cc-461c-043201a83710' (flag: 256).
YYYY-MM-DDTHH:MM:SS148Z In(05) vcpu-0 - DISKLIB-LIB   : DiskLibUnlinkInt: Disk delete successfully completed { result:0, Msg: 'The operation completed successfully', fileName:'/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002.vmdk'}
YYYY-MM-DDTHH:MM:SS Er(02) vcpu-0 - DISKLIB-LIB_CREATE   : DiskLib_CreateChild: Failed to create child disk: A digest operation has failed
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002-digest-sesparse.vmdk" : open successful (1114113) size = 0, hd = 0. Type 19
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002-digest-sesparse.vmdk" : closed.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-LIB   : DiskLibUnlinkInt: Disk delete successfully completed { result:0, Msg: 'The operation completed successfully', fileName:'/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002-digest.vmdk'}
YYYY-MM-DDTHH:MM:SS Er(02) vcpu-0 - SNAPSHOT: SnapshotBranchDisk: Failed to branch disk: '/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000001.vmdk' -> '/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/VMNAME01-000002.vmdk' : A digest operation has failed (66)
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "/vmfs/volumes/vsan:520220993a84143a-59c06e4db535f859/2504ec67-4847-6d24-2a39-043201a83710/CAP-HC-CRYSTAL_10-000001-digest-sesparse.vmdk" : closed.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - DISKLIB-VMFS  : "vsan://520220993a84143a-59c06e4db535f859/504bee67-f2b3-217e-6646-043201518600" : closed.
YYYY-MM-DDTHH:MM:SS In(05) vcpu-0 - SNAPSHOT: SnapshotBranch failed: A digest operation has failed (5).

在 Horizon 持久克隆虚拟机上观察到该问题。 
 

此问题及其解决办法已在下面提供的 VMware 知识库文章 373339 中得到解决。有关解决方法说明，请参阅下面的知识库文章。

由于错误“拍摄快照时出错：摘要作失败。
https://knowledge.broadcom.com/external/article/373339/cannot-take-a-snapshot-with-the-error-a.html

NVP vProxy：对 NetWorker 备份期间的 VMware 快照问题进行故障处理。