Backup Support for Dynamic Disks and GPT (in VDDK and VCB) (1003793)
- Virtual disk configured to use Dynamic Disks within the guest operating system
- Virtual disk configured with GUID Partition Table (GPT) in the guest operating system
The following points apply to file-level backup of Windows virtual machines using VDDK 1.2.1 and earlier releases, or VCB version 1.5 Update 1 and earlier releases. For backups on ESX/ESXi hosts, VDDK is associated with vSphere APIs for Data Protection (VADP).
VDDK and VCB support dynamic disks, unless a disk reports "Missing" status within disk management.
VCB does not support file-level backup of virtual machines if the system folder is on dynamic disk.
Neither VDDK nor VCB support RAID-5 dynamic disk, which cannot be mounted on the backup proxy.
VDDK and VCB have not been tested with GPT, which is unsupported for both.
VDDK has some hooks for Logical Volume Manager (LVM) disks on Linux.
If a virtual disk configured as dynamic disk within the guest is marked independent, the file-level mount will not be able to mount any volumes. Because independent disks are not part of a snapshot, when VDDK or VCB checks the dynamic disk database on the proxy, it finds that some of the dynamic disks are missing, hence the failure.