mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-04 05:58:57 +00:00
101 lines
2.9 KiB
Groff
101 lines
2.9 KiB
Groff
.\" Copyright (c) 1989, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" From: @(#)nfsiod.8 8.2 (Berkeley) 2/22/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 26, 2009
|
|
.Dt NFSIOD 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm nfsiod
|
|
.Nd local
|
|
.Tn NFS
|
|
asynchronous I/O server
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl n Ar num_servers
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility controls the maximum number of
|
|
.Nm
|
|
kernel processes which run on an
|
|
.Tn NFS
|
|
client machine to service asynchronous I/O requests to its server.
|
|
Having
|
|
.Nm
|
|
kernel processes
|
|
improves performance but is not required for correct operation.
|
|
.Pp
|
|
The option is as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl n
|
|
Specify how many processes are permitted to be started.
|
|
.El
|
|
.Pp
|
|
Without an option,
|
|
.Nm
|
|
displays the current settings.
|
|
A client should allow enough number of processes to handle its maximum
|
|
level of concurrency, typically four to six.
|
|
.Pp
|
|
If
|
|
.Nm
|
|
detects that the running kernel does not include
|
|
.Tn NFS
|
|
support, it will attempt to load a kernel module containing
|
|
.Tn NFS
|
|
code, using
|
|
.Xr kldload 2 .
|
|
If this fails, or no
|
|
.Tn NFS
|
|
module was available,
|
|
.Nm
|
|
exits with an error.
|
|
.Sh EXIT STATUS
|
|
.Ex -std
|
|
.Sh SEE ALSO
|
|
.Xr nfsstat 1 ,
|
|
.Xr kldload 2 ,
|
|
.Xr nfssvc 2 ,
|
|
.Xr mountd 8 ,
|
|
.Xr nfsd 8 ,
|
|
.Xr rpcbind 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
utility first appeared in
|
|
.Bx 4.4 .
|
|
.Pp
|
|
Starting with
|
|
.Fx 5.0 ,
|
|
the utility no longer starts daemons, but only serves as a vfs
|
|
loader and
|
|
.Xr sysctl 3
|
|
wrapper.
|