What is vold?
Vold is a system daemon to manage removable media devices and can automatically mount filesystems on these devices. All USB Mass storage devices are treated as removable media devices. Please install the latest vold patch (see the General section above for patch numbers) to make vold hotplug aware. In earlier Solaris Express and Solaris 10 update releases, vold is an SMF service, refer to vold(1M) and volfs(7FS) for details. The latest OpenSolaris releases has new volume manager support and vold has been eliminated.