JNLFLUSHNOPROG, No progress while attempting to flush journal file xxxx

Run Time Warning: This warning message is logged to the operator facility. This indicates that a GT.M process waited for about 2 minutes for journal file xxxx to be flushed to disk from database shared memory. The accompanying TEXT message gives more details. The JNLFLUSHNOPROG message is preceded by JNLFLUSH messages.

Action: Indicative of a clogged disk subsystem on which journal file xxxx resides. Consider balancing disk subsystem load.