Quotas are not supported by Sun Cluster file systems.
The command umount -f behaves in the same manner as the umount command without the -f option. It does not support forced unmounts.
The command unlink (1M) is not supported on non-empty directories.
The command lockfs -d is not supported. Use lockfs -n as a workaround.
The cluster file system does not support any of the file-system features of Solaris software by which one would put a communication end-point in the file-system name space. Therefore, although you can create a UNIX domain socket whose name is a path name into the cluster file system, the socket would not survive a node failover. In addition, any fifos or named pipes you create on a cluster file system would not be globally accessible, nor should you attempt to use fattach from any node other than the local node.
It is not supported to execute binaries off file systems mounted by using the forcedirectio mount option.