The value you specified for the -devices parameter is not valid.
Run the stfsclient command again, this time specifying a valid value for the -devices parameter. The syntax for the -devices parameter is -devices={dir=dir|pat=pattern|none|default}
For example, you can specify -devices=dir=dirname, -devices=pat=pattern, -devices=none, or -devices=default.
Parent topic: AIX client messages