From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.
NAME
biod - NFS daemon
SYNOPSIS
biod [ nservers ]
DESCRIPTION
biod starts nservers asynchronous block I/O daemons. This command is used on an NFS client to buffer read-ahead and write-behind. Four is the usual number for nservers.
The biod daemons are automatically invoked in run level 3.
