mdoc(7) markup overhaul.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=115119
@ -30,15 +30,14 @@
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.\" SUCH DAMAGE.
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.\" SUCH DAMAGE.
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.\"
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.\"
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.\" @(#)mount_nfs.8 8.3 (Berkeley) 3/29/95
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.\" @(#)mount_nfs.8 8.3 (Berkeley) 3/29/95
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.\"
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.\" $FreeBSD$
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.\" $FreeBSD$
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.\""
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.\"
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.Dd March 29, 1995
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.Dd May 11, 2003
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.Dt MOUNT_NFS 8
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.Dt MOUNT_NFS 8
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.Os
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.Os
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.Sh NAME
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.Sh NAME
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.Nm mount_nfs
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.Nm mount_nfs
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.Nd mount nfs file systems
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.Nd mount NFS file systems
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.Sh SYNOPSIS
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.Sh SYNOPSIS
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.Nm
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.Nm
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.Op Fl 23NPTUbcdiLls
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.Op Fl 23NPTUbcdiLls
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@ -58,7 +57,7 @@ The
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.Nm
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.Nm
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utility calls the
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utility calls the
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.Xr mount 2
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.Xr mount 2
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system call to prepare and graft a remote nfs file system
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system call to prepare and graft a remote NFS file system
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.Pq Ar rhost : Ns Ar path
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.Pq Ar rhost : Ns Ar path
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on to the file system tree at the point
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on to the file system tree at the point
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.Ar node .
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.Ar node .
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@ -94,8 +93,8 @@ The options are:
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.Bl -tag -width indent
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.Bl -tag -width indent
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.It Fl 2
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.It Fl 2
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Use the NFS Version 2 protocol (the default is to try version 3 first
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Use the NFS Version 2 protocol (the default is to try version 3 first
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then version 2). Note that NFS version 2 has a file size limit of 2
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then version 2).
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gigabytes.
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Note that NFS version 2 has a file size limit of 2 gigabytes.
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.It Fl 3
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.It Fl 3
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Use the NFS Version 3 protocol.
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Use the NFS Version 3 protocol.
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.It Fl D
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.It Fl D
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@ -107,7 +106,9 @@ message is displayed.
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.It Fl I
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.It Fl I
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Set the readdir read size to the specified value.
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Set the readdir read size to the specified value.
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The value should normally
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The value should normally
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be a multiple of DIRBLKSIZ that is <= the read size for the mount.
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be a multiple of
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.Dv DIRBLKSIZ
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that is <= the read size for the mount.
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.It Fl L
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.It Fl L
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Do
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Do
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.Em not
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.Em not
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@ -115,10 +116,10 @@ forward
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.Xr fcntl 2
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.Xr fcntl 2
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locks over the wire.
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locks over the wire.
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All locks will be local and not seen by the server
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All locks will be local and not seen by the server
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and likewise not seen by other NFS clients. This removes
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and likewise not seen by other NFS clients.
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the need to run the
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This removes the need to run the
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.Xr rpcbind 8
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.Xr rpcbind 8
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service and the
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service and the
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.Xr rpc.statd 8
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.Xr rpc.statd 8
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and
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and
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.Xr rpc.lockd 8
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.Xr rpc.lockd 8
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@ -208,68 +209,75 @@ flag followed by a comma separated string of options.
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See the
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See the
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.Xr mount 8
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.Xr mount 8
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man page for possible options and their meanings.
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man page for possible options and their meanings.
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The following NFS specific option is also available:
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The following NFS specific options are also available:
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.Bl -tag -width indent
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.Bl -tag -width indent
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.It port=<port_number>
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.It Cm port Ns = Ns Aq Ar port_number
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Use specified port number for NFS requests.
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Use specified port number for NFS requests.
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The default is to query the portmapper for the NFS port.
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The default is to query the portmapper for the NFS port.
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.It acregmin=<seconds>
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.It Cm acregmin Ns = Ns Aq Ar seconds
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.It acregmax=<seconds>
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.It Cm acregmax Ns = Ns Aq Ar seconds
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.It acdirmin=<seconds>
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.It Cm acdirmin Ns = Ns Aq Ar seconds
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.It acdirmax=<seconds>
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.It Cm acdirmax Ns = Ns Aq Ar seconds
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When attributes of files are cached, a timeout calculated to determine
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When attributes of files are cached, a timeout calculated to determine
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whether a given cache entry has expired. These four values determine the
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whether a given cache entry has expired.
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upper and lower bounds of the timeouts for ``directory'' attributes and
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These four values determine the upper and lower bounds of the timeouts for
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``regular'' (ie: everything else). The default values are 3 -> 60 seconds
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.Dq directory
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for regular files, and 30 -> 60 seconds for directories. The algorithm to
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attributes and
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calculate the timeout is based on the age of the file. The older the file,
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.Dq regular
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(ie: everything else).
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The default values are 3 -> 60 seconds
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for regular files, and 30 -> 60 seconds for directories.
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The algorithm to calculate the timeout is based on the age of the file.
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The older the file,
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the longer the cache is considered valid, subject to the limits above.
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the longer the cache is considered valid, subject to the limits above.
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.It noinet4
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.It Cm noinet4 , noinet6
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.It noinet6
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Disables
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Disables AF_INET or AF_INET6 connections. Useful for hosts that have
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.Dv AF_INET
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or
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.Dv AF_INET6
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connections.
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Useful for hosts that have
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both an A record and an AAAA record for the same name.
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both an A record and an AAAA record for the same name.
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.El
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.El
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.Pp
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.Bl -tag -width ".Cm dumbtimer"
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.Bl -tag -width "dumbtimerXX"
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.Ss Historic Fl o Ss Options
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\fBHistoric \&-o options\fR
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.Pp
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Use of these options is deprecated, they are only mentioned here for
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Use of these options is deprecated, they are only mentioned here for
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compatibility with historic versions of
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compatibility with historic versions of
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.Nm .
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.Nm .
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.It bg
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.It Cm bg
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Same as
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Same as
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.Fl b .
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.Fl b .
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.It conn
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.It Cm conn
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Same as not specifying
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Same as not specifying
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.Fl c .
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.Fl c .
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.It dumbtimer
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.It Cm dumbtimer
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Same as
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Same as
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.Fl d .
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.Fl d .
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.It intr
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.It Cm intr
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Same as
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Same as
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.Fl i .
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.Fl i .
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.It lockd
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.It Cm lockd
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Same as not specifying
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Same as not specifying
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.Fl L .
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.Fl L .
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.It nfsv2
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.It Cm nfsv2
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Same as
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Same as
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.Fl 2 .
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.Fl 2 .
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.It nfsv3
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.It Cm nfsv3
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Same as
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Same as
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.Fl 3 .
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.Fl 3 .
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.It rdirplus
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.It Cm rdirplus
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Same as
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Same as
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.Fl l .
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.Fl l .
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.It mntudp
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.It Cm mntudp
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Same as
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Same as
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.Fl U .
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.Fl U .
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.It resvport
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.It Cm resvport
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Same as
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Same as
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.Fl P .
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.Fl P .
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.It soft
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.It Cm soft
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Same as
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Same as
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.Fl s .
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.Fl s .
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.It tcp
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.It Cm tcp
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Same as
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Same as
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.Fl T .
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.Fl T .
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.El
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.El
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@ -291,7 +299,9 @@ See the
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option as well.
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option as well.
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.It Fl s
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.It Fl s
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A soft mount, which implies that file system calls will fail
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A soft mount, which implies that file system calls will fail
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after \fBRetry\fR round trip timeout intervals.
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after
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.Ar retrycnt
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round trip timeout intervals.
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.It Fl t
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.It Fl t
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Set the initial retransmit timeout to the specified value.
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Set the initial retransmit timeout to the specified value.
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May be useful for fine tuning UDP mounts over internetworks
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May be useful for fine tuning UDP mounts over internetworks
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@ -300,7 +310,9 @@ Try increasing the interval if
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.Xr nfsstat 1
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.Xr nfsstat 1
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shows high retransmit rates while the file system is active or reducing the
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shows high retransmit rates while the file system is active or reducing the
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value if there is a low retransmit rate but long response delay observed.
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value if there is a low retransmit rate but long response delay observed.
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(Normally, the -d option should be specified when using this option to manually
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(Normally, the
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.Fl d
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option should be specified when using this option to manually
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tune the timeout
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tune the timeout
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interval.)
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interval.)
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.It Fl w
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.It Fl w
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