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public:8080_vmware_esxi_restore_delta_disk_format_of_virtual_disks_is_not_supported_by_datastore

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ISSUE: Warning "Delta disk format of virtual disks is not supported by datastore." when restoring a virtual machine (VMware ESXi restore)

Article ID: 8080
Reviewed: 22/04/2020

Product Version:
AhsayOBM : 7.5.0.0 or above
OS: Windows

Problem Description

When performing a guest VM restore on a VMware ESXi host, the following warning message is received in the restore report and the guest VM is not restored:

No. Type Timestamp Log
* info ... ...
* warn YYYY/MM/DD hh:mm:ss "Delta disk format of virtual disks is not supported by datastore."
* ... ... ...

Cause

This issue can occur if virtual machine was originally backed up on a VMware ESXi host with a datastore on a different VMFS version, for example the backup of the virtual machine was done on a VMWare ESXi host with a VMFS5 datastore in VDDK backup mode but it is subsequently restored to a VMware ESXi host using a VMFS6 datastore and vice versa.

Note: This limitation does not apply to VMware vCenter backup sets.

Resolution

To resolve the issue, restore to the guest VM to a VMware ESXi host with a datastore using the same VMFS version.

Keywords

VMware ESXi, datastore, guest, VMFS, virtual disks, VDDK

public/8080_vmware_esxi_restore_delta_disk_format_of_virtual_disks_is_not_supported_by_datastore.1587538470.txt.gz · Last modified: 2020/04/22 14:54 by yuk.cheng

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