Error numbers specific to GPFS application calls when file system manager appointment fails

When the appointment of a file system manager is unsuccessful after multiple attempts, GPFS may report these error numbers in error logs, or return them to an application:

ENO_MGR = 212, The current file system manager failed and no new manager could be appointed.

This usually occurs when a large number of disks are unavailable or when there has been a major network failure. Run mmlsdisk to determine whether disks have failed and take corrective action if they have by issuing the mmchdisk command.