I'm having backup issues and have looked this one up and seems to relate to the exchange error before it.
Exchange VSS Writer (instance 176551d2-ce22-406f-963b-00b64fb281ea:6) has unsuccessfully completed the backup of storage group 'First Storage Group'. No log files have been truncated for this storage group.
Exchange VSS Writer (instance 176551d2-ce22-406f-963b-00b64fb281ea:6) has unsuccessfully completed the backup of storage group 'Second Storage Group'. No log files have been truncated for this storage group.
Information Store (2432) Shadow copy instance 6 aborted.
Seem like its has issue with log files. I have tried the posts about turning on and off circular logs and it does not seem to solve the issues. Any help would be great since I have not had a backup in 10 days.
Johnathan Penberthy