SummaryThe system tab under Dashboard shows database status as unknown
OverviewSometimes when you check on the System tab on Dashboard, the database status will show as unknown.
What this means is just that the processes querying the database was not able to get a response from the database.
The database could be just busy, so give it some time to complete what it is doing. A good example is when the database is in the middle of upgrading.
If after about half an hour the status has not changed, you can try re-starting the database.
command: service database restart
If this does not help, contact support.