This enhancement to the volfs utility is new in the Solaris 10 6/06 release.
The volume management daemon, vold, is now managed by the Service Management Facility (SMF). This means you can use the svcadm disable command to disable the following new volfs service, if appropriate:
# svcadm disable volfs
You can identify the status of the volfs service by using this command:
$ svcs volfs STATE STIME FMRI online Sep_29 svc:/system/filesystem/volfs:default
For more information about managing the volfs service, see What’s New in Removable Media? in System Administration Guide: Devices and File Systems.