mount_nfs.1m (2010 09)

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mount_nfs(1M) mount_nfs(1M)

NAME

mount_nfs: mount, umount - mount and unmount remote NFS resources

SYNOPSIS

/sbin/fs/nfs/mount

[-F nfs][-drqOV

][-o speciﬁc_options ] resource mount_point

/sbin/fs/nfs/umount -a

[-df

]

/sbin/fs/nfs/umount

[-df]{resource mount_point }

DESCRIPTION

This manpage describes only the NFS-speciﬁc

mount and umount commands. See mount (1M) for the

description of the non-NFS commands.

The

mount utility attaches a named resource to the ﬁle system hierarchy at the pathname location

mount_point , which must already exist. If mount_point has any contents prior to the

mount operation,

the contents remain hidden until the resource is once again unmounted.

Only a superuser can mount ﬁle systems.

The

umount utility unmounts mounted ﬁle systems.

Only a superuser can unmount ﬁle systems.

resource can be of the form:

host

:pathname

The host can be the name of the NFS server host, or an IPv4 or IPv6 address string. As IPv6

addresses already contain colons, enclose host in a pair of square brackets when specifying an

IPv6 address string. Otherwise, the ﬁrst occurrence of a colon can be interpreted as the

separator between the host name and path; for example:

[1080::8:800:200C:417A]:tmp/file

See IPv6(7P).

pathname is the path name of the directory on the server being mounted. The path name is

interpreted according to the server’s path name parsing rules, and the path name is not neces-

sarily slash-separated. However, on most servers, the path name is slash-separated.

nfs://host[:port]/pathname

Specify an NFS URL and follow the standard convention for NFS URL as described in NFS

URL, RFC 2224. See the discussion of URL’s and the public

option under section NFS FILE

SYSTEMS below for a more detailed discussion.

A comma-separated list of:

nfs://host[:port]/pathname or host:pathname. See the discussion on Replicated File

Systems and Failover under NFS FILE SYSTEMS for a more detailed discussion.

A comma-separated list of:

hosts followed by a

:pathname sufﬁx. See the discussion on Replicated File Systems and Fail-

over under NFS FILE SYSTEMS for a more detailed discussion.

Options (mount)

See mount(1M) for the description of the

-rFV options. Note that the -F option only accepts nfs (see

fstypes (4)).

The

mount options are as follows:

-d Print debug messages to stderr. This option is to be used by HP support engineers.

-o specific_options

These speciﬁc_options are NFS-speciﬁc only.

Set ﬁle system speciﬁc options according to a comma-separated list with no intervening spaces.

specific_options are deﬁned as follows:

acdirmax=n Hold cached attributes for no more than n seconds after directory update. The

default value is 60.

acdirmin=n Hold cached attributes for at least n seconds after directory update. The

default value is 30.

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (10 pages)

PAGE 1
mount_nfs(1M) mount_nfs(1M) NAME mount_nfs: mount, umount - mount and unmount remote NFS resources SYNOPSIS /sbin/fs/nfs/mount [-F nfs] [-drqOV] [-o specific_options ] resource mount_point /sbin/fs/nfs/umount -a [-df] /sbin/fs/nfs/umount [-df] {resource mount_point } DESCRIPTION This manpage describes only the NFS-specific mount and umount commands. See mount (1M) for the description of the non-NFS commands.
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mount_nfs(1M) mount_nfs(1M) acregmax=n Hold cached attributes for no more than n seconds after file modification. The default value is 60. acregmin=n Hold cached attributes for at least n seconds after file modification. The default value is 3. actimeo=n Set min and max times for regular files and directories to n seconds. actimeo has no default; it sets acregmin, acregmax, acdirmin, and acdirmax to the value specified by n.
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mount_nfs(1M) mount_nfs(1M) posix Request POSIX.1 semantics for the file system. Requires a mount NFS Version 2 mountd on the server. See mountd (1M). proto=netid netid is a value of network_id field from entry in the /etc/netconfig file. By default, the transport protocol used for the NFS mount will be first available connection-oriented transport supported on both the client and the server. If no connection-oriented transport is found, then the first available connectionless transport is used.
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mount_nfs(1M) mount_nfs(1M) protocol. To specify NFS Version 2, set NFS_version_number to be 2. To specify NFS Version 3, set NFS_version_number to be 3. If the -F option and vers= are both specified, vers= overrides the -F option. wsize=n Set the write buffer size to n bytes. The default value is 32768 when using Version 3 of the NFS protocol. The default can be negotiated down if the server prefers a smaller transfer size. When using Version 2, the default value is 8192.
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mount_nfs(1M) public option Default mount_nfs(1M) Resource Style host:pathname NFS URL Force public file handle and fail Force public file handle and fail mount if not supported. mount if not supported. Use Native paths. Use Canonical paths. Use MOUNT protocol. Try public file handle with Canonical paths. Fall back to MOUNT protocol if not supported. A Native path is a path name that is interpreted according to conventions used on the native operating system of the NFS server.
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mount_nfs(1M) struct nfs_args { struct netbuf struct netbuf struct knetconfig char char caddr_t uint64_t int32_t int32_t int32_t int32_t int32_t int32_t int32_t int32_t struct pathcnf char int32_t union nfs_ext }; mount_nfs(1M) *addr; *syncaddr; *knconf; *hostname; *netname; fh; flags; wsize; rsize; timeo; retrans; acregmin; acregmax; acdirmin; acdirmax; *pathconf; *fsname; nfs_args_ext; nfs_ext_u; /* /* /* /* /* /* /* /* /* /* /* /* /* /* /* /* /* /* /* File server address */ Secure NFS time sync addr
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mount_nfs(1M) mount_nfs(1M) Note: Apart from the above mentioned special scenarios, the extension structure need not be used. Example: Mount exported nfsserver:/share1 using NFS v3 under client’s /test: /* Vairable definitions */ struct nfs_args nfsData; struct netconfig *netConfig; struct knetconfig knetConfig; struct stat statBuf; struct sockaddr_in addr; struct netbuf nb; nfs_fh3 fh3p; #define NFS_MAXDATA 32768 { ...
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mount_nfs(1M) mount_nfs(1M) } RETURN VALUE mount_nfs returns the following values: 0 >0 Successful completion. An error occurred. See the ERRORS section. ERRORS If error code 157 [ECONFIG] is returned, mount_nfs has reached the process thread limit. Increase the value of nkthread . See nkthread (5) for more details.
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mount_nfs(1M) mount_nfs(1M) Callaghan, Brent, WebNFS Client Specification , RFC 2054, October 1996. Callaghan, Brent, NFS URL Scheme , RFC 2224, October 1997. Berners-Lee, Masinter & McCahill , Uniform Resource Locators , RFC 1738, December 1994.
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(Notes) A (Notes) mA 10 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010