Your server needs access to the VSS-CONTROl volume on the EQL group.  If you re-rrun remote setup wizard there's an option to configure access to group.   Or in the EQL GUI under  Group parameters->VSS/VDS tab and add an ACL entry there for that server
I need to see about re-thinning a couple of volumes that are attached to Exchange systems, Windows 2008 and Exchange 2010 via iSCSI.   I need to see if anyone has re-thinned a Exchange database volume before and if they noticed anything out of the ordinary. I am assuming that doing this after hours would be the best. Trying to make sure that all of bases are covered in regards to possible issues.    I am also trying to figure out how to properly configure the HIT program on a windows 2008 system. I have installed the program on a test system, but I am unable to connect to the SAN. Multicasting has been enabled on the network, so not sure what else could be missing. I will only be using the program to re-thin volumes, not take snapshots or do replications. The HIT program will be used to re-thin the Exchange systems.   San Info: PS6100 Firmware 6.0.6 (Yes, I know this needs to be upgraded)   Thank you  Conny Schwerdtfeger
RE-thinning Exchange Database Volume 