Error numbers specific to GPFS application calls when a file system has been forced to unmount

There are error numbers to indicate that a file system is forced to unmount for GPFS application calls.

When a file system has been forced to unmount, GPFS may report these error numbers in the operating system error log or return them to an application:

EPANIC = 666, A file system has been forcibly unmounted because of an error. Most likely due to the failure of one or more disks containing the last copy of metadata.: See Operating system error logs for details.
EALL_UNAVAIL = 218, A replicated read or write failed because none of the replicas were available.: Multiple disks in multiple failure groups are unavailable. Follow the procedures in Disk issues for unavailable disks.