NBU Virtual Machine Backup failed-error code 156

refer to Symantec Knowledge Base Document HOWTO70878

http://www.symantec.com/business/support/index?page=content&id=HOWTO70878

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Virtual machine display Name (DISPLAYNAME): The display name in the VMware vcenter list

Virtual machine disk Name: The virtual machine disk file name in Datastore

Virtual Machine folder: The virtual machine folder name in Datastore

Virtual machine ISO CD: Virtual image file name mounted on virtual machine

The above four classes must be in English with ASCII code and cannot have null characters

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In the virtual machine display name is English "CHS", the virtual Machine folder name is "Chinese characters" and the virtual machine disk file is "Chinese characters. vmdk"

Backup fails in this instance environment and prompts snapshot error Final error 156

To fix a backup failure, you need to change the above five classes of names into English so that you can perform storage vMotion without affecting your production environment

First step: Change display name to English

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Step two: Migrating Virtual machine Storage Locations

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Step three: Check the migrated virtual machine disk files, folders, and manifest names in English

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Fourth step: Re-executing the backup successfully

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NBU Virtual Machine Backup failed-error code 156