20.4 SunOS 5.X

20.4.4 Daemons

The block I/O daemons, biod, have been replaced by kernel threads. NFS write requests are queued and assigned to a kernel thread on a per-mount basis. The kernel thread performs the asynchronous write request. The kernel threads are created on demand, with up to 8 per mount point allowed. When there are no outstanding write requests no threads exists for that mount point.

8 nfs daemons, nfsd, and the mount daemon, mountd, are started when you initiate run level 3 by the /etc/rc3.d/S15nfs.server script. These daemons are physically located in /usr/lib/nfs. If the /etc/dfs/dfstab file is empty when entering run level 3 the mountd and nfsd daemons are not started. To start these daemons later you can place an entry in the dfstab file and execute "init 1", and then return to run level 3, or you can execute the nfs.server script mentioned above.

NFS clients require the statd and lockd daemons, also located in /usr/lib/nfs.

Unix System Administration - 8 AUG 1996

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