I am using Microsoft DPM to backup data. The backups ran fine for months however recently I started getting messages that the data was not consistent. I ran the consistentcy checker but they failed for 4 of the protection groups. I am backing up data from a failover cluster and it seems to be that data is the issue, not all the data is inconsistent. After consistency checker failed I tried modifying disk space and modifying the protectect members in the group. If I try to add/remove the proctective group members DPM clocks continuosly and never expands. The same things happen if I try to add additional space. I have provided an attachment of what I see when trying to modify.
Your help is greatly appreciated.