We have recently installed A Dell Powervault running Windows Storage Server 2003 R2 x64. On it, we are using Data Protection Manager 2007. We have created protection groups for our 3 servers. They are all working fine, with one exception: On our Exchange 2007 server (running Windows 2003 R2 x64 Standard), the stores will not back up, because every time create the protection group for them, when it begins creating the replica, it says "data is inconsistent" and won't progress. If you try to manually launch a consistency check at this point, it does the same thing. This happens on both the first and second storage group (all the groups we have). The error in event viewer states the following:
The replica of First Storage Group on mailserv1.xxxxx.xxx is inconsistent with the protected data source. All protection activities for data source will fail until the replica is synchronized with consistency check. (ID: 3163)
DPM has detected a discontinuity in the log chain for First Storage Group on mailserv1.xxxxx.xxx since the last synchronization. (ID: 30216)
(I have removed our domain name for security reasons).
I have tried the following (before doing all of these, I deleted, did the item, then recreated the protection group):
1) Ran a full NTBackup to properly truncate and otherwise handle the log files on the exchange server.
2) Trying both the 32 bit and 64 bit versions of eseutil.exe and ese.dll
3) Unchecking the "use eseutil to verify database integrity" option when creating the protection group
It was suggested I remove, reboot, and repush the agent onto the exchange server, but I can't imagine why this would work, considering the other three items (two drives and a the system state) on the exchange server all seem to be functioning fine. It's specifically the exchange stores.
Another thing to note is that when doing the consistency check, DPM 2007 labels the stores "replica is inconsistent" fairly quickly.