Windows Server 2008 backup schedule wizard not showing volumes

Question

Hi folks,
We are running into issues when attempting to configure a Windows Backup schedule through either running the Backup Schedule wizard or through using the wbadmin utility. While I have previously posted this issue on a separate forum (with no luck) I’ve restructured
this description based on the responses received and am also hoping that this a more suitable forum for the problem we are experiencing.
On running the backup wizard the backup configuration screen shows the backup size to be 0KB for the Full Server option or if I choose ‘Custom’ and go to ‘select backup items’ the volume list is empty. However the later ‘select destination disk’ screen of
the wizard lists all of the disks attached to the server along with the associated volume letters (via clicking the ‘Show All Available Disks’ option).
On the backup wizard reaching the summary stage it then proceeds to format the destination disk. On completion of this format the wizard status then changes to ‘Creating backup schedule’ at which point it then fails with the message “The specified number
of volumes is invalid”.
Equally running the following wbadmin command:
wbadmin ENABLE BACKUP -addtarget:{81737a1c-0000-0000-0000-000000000000} -schedule:21:00 -include:c:
Results in the following error:
“ERROR - One of the source volumes specified cannot be included: c: Please specify source as a volume drive letter or access path (if volume is mounted in a folder). Only volumes on locally attached disks can be backed up.”
The server is a Dell PowerEdge R620 running Windows server 2008SP2 and is operating as expected other than for this windows back issue. Everything appears as normal when I view the disks within the Disk Management Console. Backups used to run on this server
fine before it was migrated from old hardware to new hardware using Doubletake Move. Everything else is running fine since the migration apart from Windows backup so not why it would only be effecting Windows backup. I have also ran the wbadmin ‘delete
catalog’ command to remove reference to the previous backups that were taken.
Is there any other tests that I can run to determine why Windows backup is having trouble seeing the available volumes at the 'Select Backup items' stage but not at the Select Destination' stage? Any help or pointers in the right direction would be very
much appreciated.
Thanks,
Niall

Answer 1

Hi Mandy,
Thanks for your advise and apologies for my delayed response. I've was on leave for the past two weeks and my colleague (who had been watching this post in my absence)
was nervous about deleting registry entries (:>).. 
I have searched for upper and lower filter values defined under the specified 'Class' registry folder and have found there to be no values specified for either:
"Storage volume shadow copies" at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{533C5B84-EC70-11D2-9505-00C04F79DEAF}
OR "Storage Volumes" at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{71A27CDD-812A-11D0-BEC7-08002BE2092F}
Happy to share the other values stored under these two keys if they would be of use in helping spot the problem?
The only upperFilters value that I found within the Class registry folder that related to storage was:
"Disk drives" at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318} which had a REG_MULTI_SZ upperFilters value of 'PartMgr'.
Do you know if this Disk drives upperFilters value is as expected and if should/can I delete it?
Also is there any other tests that I can run to determine why Windows backup is having trouble seeing the available volumes at the 'Select Backup items' stage but not at the Select Destination' stage?
Thanks,
Niall