Windows Server 2008 Backup and RD1000

Scenario: I have a Brand New Dell Poweredge Server with SBS2011. The server has a RD1000 SATA Cartridge Unit.

The total disk capacity of server is nearly 1TB (divided in two partititions), but actual data occupies about 222 GB.

The SATA Disk Cartridges are 300GB.

Problems, problems, everywhere (and not any hint to solve):

SBS Backup does not recognize the RD1000 both as a Disk Unit and as a network share (bah...), but I found that if you launch the Windows Server Backup outside from the SBS Console you can reach the RD1000 Network Share.

Wow! But... when I try to Schedule the backup through the wizard it analyzes the destination drive and aborts with message "Not enough space". It seems that the backup will need 400(!)GB.

That does not match with the data size! And I think that even if Bare Metal support needs some extra files that can not be so big.

Solution: Scheduling a batch ignores that destination size check. I'm saving the data on the RD1000 using the following batch:

WBADMIN START BACKUP -backupTarget:\\server\rd1000  -include:c:,d:  -allCritical -vssFull -quiet >> C:\Batch\Backuplog.txt 

I've tried a restore through the console and it seems to be able to restore individual files and exchange and sharepoint applications.

HTH