I am having difficulties with some SQL databases not backing up to my secondary DPM server. a number of them are in "Replica is inconsistent" state and a few are in "Recovery Point creation failed" state though they are all OK on the primary DPM server.
The primary server is getting lots of Event ID 4222 errors for MSDPM (DPM has run out of free recovery point space and will fail snapshots) even though the disk allocated looks healthy.
On the primary, VSSADMIN LIST Writers says the DPM Writer is State: [7] Failed and in non-retryable error state but I can't work out why or how to fix it so far.
There are no errors on the secondary other than the failure to backup some databases on the primary.
I am using DPM 2012 R2 on Windows Server 2012 R2 for both primary and secondary.
Any suggestions would be most welcome.
Thanks
Mark