Add a Backup Disk when not all Disk are available on site in Server 2008R2 and above.

As of SBS 2008 R2 the procedure for adding additional backup disk has changed. You now have to have all existing backup disk available before you can add a new disk. This is ridiculous right? Lets say you have a SBS server with 4 Backup disk. And you cycle the disk every day. The ones not used you take home to be extra safe. Now for some reason you have to add a disk, because one has failed or you just like to be even safer. Now when you try this with the SBS console it gives you a nice pretty error. “The filename, directory name, or volume label syntax is incorrect” as per Microsoft this is because when you run the wizard it verifies all the disks in the backup schedule. Their are three ways you can resolve this problem. I am only going to explain one because the other solutions will require the original disk or recreating the backup schedule, and whe ain’t got time for that now do whe? Well Lets get going.

Screenshots of problem:

Error SBS adding backup disk Error adding backup disk Server 2008R2

Solution:

For this to work whe are gonna use the wbadmin utility through the command line.

  1. Start an elevated command promt and type
         wbadmin get diskswbadmin get disks
  2. Now run the following command, pay special notice to the -addtarget parameter this uses the Disk identifier from the last output. for instance in my example when i wanted to use Disk 2 i would use the command below.
         WBADMIN ENABLE BACKUP -addtarget:{61b1e5a6-0000-0000-0000-000000000000}wbadmin -addtarget
  3. When you receive the following prompt, type Y for Yes.

“Do you want to enable scheduled backups with the above settings?”

Source: http://support.microsoft.com/kb/2009365/en-us

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