Dear all,
4 weeks ago we updated our Data Protector server from Windows 2003 with DP 6.2 to Windows 2008 with DP 7. Since then we have really big backup problems.
We are using VSphere 5.0.0 U2 and the DP Virtual Environment Integration. Most times the backup starts, creates a snapshot of the virtual machine, backups vmx file and then... nothing.
The backup runs into a time-out. Without backing up anything. This happens with single VM backups and also to multiple VMs in one backup job.
With DP 6.2 we had Changed Block Tracking activated, because HP told us so to only backup the used space of vmdk.
Now Changed Block Tracking option in DP is deactivated and HP tells us that DP is running fine and waits for data or response from VMware server.
VMware told us that it could be because of corrupt Changed Block Tracking files and how to clean it. But it does not help at all.
Some time (really rare) a backup works. But on the other day the same backup job times out.
Does anybody have similar experience or at least a workaround? I am really desperate the moment because our productive environment runs without backups... 
Best regards and praying for help
Peter