The storage watchdog facility creates a few probe files, writes a string to them, reads it back, and terminates mongod if the read value doesn't match the written value. Probe files are created in the same directory as the auditPath and logPath files. If multiple mongod processes are running on a machine with audit files or log files in the same directory, the watchdog probe files will collide. This can cause false alarms.

This could be addressed by embedding the mongod pid in the probe file name, or by embedding the audit file or log file name in the probe file name.