Dealing with system log errors

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Log error message
Possible treatment
The system was not shut down properly
Check, if there are follow up error messages close by, e.g. about file system problems.
[... Disk Volume: Drive ...] The file system is not clean. It is suggested that you run "check disk"
Go To System Settings / Storage Manager / Volume Management. Under "Logical Volumes" select the volume mentioned in the log message and run "Check File system"
[... Disk Volume: Drive ...] Examination failed (Cannot unmount disk)
Usually caused by an unsuccessful attempt to run "check file system". Try rebooting the NAS and try "check fily system" again. If that also fails, make sure to have a recent backup first before attempting to fix the problem with SSH commands.