VADP backup fails without catching error

Hi there,

I'm having a strange issue with a VADP backup

NW 7.6.3 on a windows host (2008R2) which also acts as VADP proxy.

All the vm's works fine , except for one .

the savegroup fails without throwing an error.

also increasing the level of debug does not seems to help .

Initializing VADP Configuration.

Using bkserver.appl.customer.domain as the VADP proxy server host for client clientname.

Application information attribute VADP_HOST for client clientname is set to "vcenter.appl.customer.domain".

Application information attribute VADP_DISABLE_FLR for client clientname is set to default value of "No".

Application information attribute 'VADP_QUIESCE_SNAPSHOT' for client 'clientname' is set to default value of "Yes".

Application information attribute VADP_BACKUPROOT for client clientname is set to "V:\VADP_MOUNT".

Application information attribute VADP_TRANSPORT_MODE for client clientname is set to "san".

Application information attribute VADP_MAX_RETRIES for client clientname is set to "0".

Application information attribute VADP_MAX_BACKOFF_TIME for client clientname is set to "10".

Trying to reset the client resource application information attributes.

Application information attribute VADP_HYPERVISOR for client clientname is set to "vcenter.appl.customer.domain".

Application information attribute VADP_DISABLE_FLR for client clientname is set to 'Yes'.

VC\ESX Host Name        : 192.168.179.100

VC\ESX Port             : 443

VC\ESX Username         : vcbadmin

Mount point             : V:\VADP_MOUNT\clientname

Flavor                  : fullvm

Transport Mode          : san

Max retry               : 0

Max backoff time        : 10

VDDK Install Directory: D:\Program Files\Legato\nsr\plugins\VDDK.

VADP VM-TMP Directory Location: V:\VADP_MOUNT\clientname\clientname\clientname-tmp\letters\1.

Temporary Directory for VM created.

VADP TMP Directory Location: V:\VADP_MOUNT\clientname\clientname\tmp.

Temporary Directory for VADP created.

Temporary vmMntLoc Directory for VADP created.

Performing the backup via the Virtual Center.

Trying to connect to the VM using ipaddr/DNS name 'clientname'.

Performing a FULL Image level backup.

Creating quiesced snapshot for 'clientname'.

Creating snapshot for 'vm-16967' ...

Task is -1% complete

Task is 95% complete

Task is -1% complete

SnapShot created Successfully for VM 'clientname'.

Downloading VM configuration for clientname.

Configuration downloaded successfully for VM 'clientname'.

Following are the details of the client clientname:

VirtualCenter        : 192.168.179.100

ESX Server        : esxserver13

DataCenter Name        : DCname

ConfigDatastore Name    : storage-cx340-17

Resourcepool Name    : /

Following is the disk information of the client clientname:

Disk 1 Label        : Hard disk 1

Disk 1 Size        : 60,0 GB

Disk 1 Datastore name    : storage-cx340-17

Disk 2 Label        : Hard disk 2

Disk 2 Size        : 15,0 GB

Disk 2 Datastore name    : storage-cx340-14

Disk 3 Label        : Hard disk 3

Disk 3 Size        : 15,0 GB

Disk 3 Datastore name    : storage-cx340-21

Disk 4 Label        : Hard disk 4

Disk 4 Size        : 15,0 GB

Disk 4 Datastore name    : storage-cx340-16

Disk 5 Label        : Hard disk 5

Disk 5 Size        : 20,0 GB

Disk 5 Datastore name    : storage-cx340-14

Disk 6 Label        : Hard disk 6

Disk 6 Size        : 20,0 GB

Disk 6 Datastore name    : storage-cx340-14

Disk 7 Label        : Hard disk 7

Disk 7 Size        : 80,0 GB

Disk 7 Datastore name    : storage-cx340-19

Disk 8 Label        : Hard disk 8

Disk 8 Size        : 1024,0 MB

Disk 8 Datastore name    : storage-cx340-19

Disk 9 Label        : Hard disk 9

Disk 9 Size        : 2,0 GB

Disk 9 Datastore name    : storage-cx340-21

Disk 10 Label        : Hard disk 10

Disk 10 Size        : 2,0 GB

Disk 10 Datastore name    : storage-cx340-11

Disk 11 Label        : Hard disk 11

Disk 11 Size        : 2,0 GB

Disk 11 Datastore name    : storage-cx340-17

Disk 12 Label        : Hard disk 12

Disk 12 Size        : 2,0 GB

Disk 12 Datastore name    : storage-cx340-17

Disk 13 Label        : Hard disk 13

Disk 13 Size        : 30,0 GB

Disk 13 Datastore name    : storage-cx340-22

Total Number of Disks    : 13

Obtained the virtual disks for the VM.

Change block tracking is disabled for VM: clientname

File level Recovery from Image level backup is disabled.

Backup of the non-NTFS volume Success.

Cleaningup VADP mount operation.

Deleting snapshot for 'snapshot-33730' ...

Task is -1% complete

Task is 95% complete

Task is -1% complete

Snapshot for VM clientname is deleted.

Temporary directory 'V:\VADP_MOUNT\clientname' for VADP deleted.

any hint ?