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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.
p The option is as follows: l -tag -width indent t Fl n Specify how many processes are permitted to be started. .El
p 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.
p 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 x 4.4 .
p Starting with .Fx 5.0 , the utility no longer starts daemons, but only serves as a vfs loader and .Xr sysctl 3 wrapper.