NetVault Backup Plugin for VMware version 2.5 uses VMware the VDDK 5.0 API set. Per VMware, VDDK 5.0 cannot support GPT volumes in the VixMntapi library, a core library used by the NetVault plugin.
解决办法
Do not use the NetVault Backup Plugin for VMware to backup Virtual Machines with GPT partitions.
其他信息
VDDK 5.0 lack of support for GPT is noted in the release notes:
http://www.vmware.com/support/developer/vddk/VDDK-500-ReleaseNotes.html