I've been trying to shrink a volume in W2008R2, but whenever I try to initiate the process the system just sits and the disk manager starts to hang, I've left it for 48 hours at one point waiting for it to tell me how much space it could reduce with no response.
I've also tried it with diskpart using shrink querymax and that also hangs.
Although the server still works at this point.
The machine is running the latest SP1\Fixes and also has DPM 2010 installed.
I've tried it on another machine with W2008R2 and DPM 2010 and got a response from both.
I was thinking of booting to safe mode but i'm going to see if I get a response overnight.