6027-306 [E] Could not initialize inter-node communication

Explanation
The GPFS™ daemon
was unable to initialize the communications required to proceed.
User response
User action depends on the return code shown in the
accompanying message (/usr/include/errno.h). The communications
failure that caused the failure must be corrected. One possibility
is an rc value of 67, indicating that the
required port is unavailable. This may mean that a previous version
of the mmfs daemon is still running. Killing that daemon may
resolve the problem.