In the GFS Shared File System, it is necessary to add a mount entry to /etc/vfstab on all of the nodes that are sharing a file system. In addition, if a mount entry is added to /etc/vfstab on the node that is not sharing a file system, the special file is not used as other file systems even if mistaking.
Add the GFS Shared File System to /etc/vfstab of nodes that have been added.
If nodes are deleted, change the /etc/vfstab settings so that the GFS Shared File System will not be mounted.
See
For details on setting /etc/vfstab, see "11.2.4 Setting vfstab"
