I don't think it is. If not we can shut it off and see if anything strange happens. The name of the host is all I know of what it might do. I don't find it in wikitech beyond purge logs. If it is a db backup for PAWS that isn't a high value, as the PAWS db just lists login information and gets redeployed fresh on cluster upgrades to limit cookie problems.
Verified in IRC that this was a backup system for the trove db. Though it appears to not be in use out of habit I've shut it down and will remove it after it is clear that the world didn't fall over.