nfsd(1M) System Administration Commands nfsd(1M)NAMEnfsd - NFS daemon
SYNOPSIS
/usr/lib/nfs/nfsd [-a] [-c #_conn] [-l listen_backlog]
[-p protocol] [-t device] [nservers]
DESCRIPTIONnfsd is the daemon that handles client file system requests. Only users
with {PRIV_SYS_NFS} and sufficient privileges to write to /var/run can
run this daemon.
The nfsd daemon is automatically invoked using share(1M) with the -a
option.
By default, nfsd starts over the TCP and UDP transports for versions 2
and 3. By default, it starts over the TCP for version 4. You can change
this with the -p option.
A previously invoked nfsd daemon started with or without options must
be stopped before invoking another nfsd command.
To change startup parameters for nfsd, use the sharectl(1M) and
sharemgr(1M) commands.
OPTIONS
The following options are supported:
-a Start a NFS daemon over all available connectionless and
connection-oriented transports, including UDP and TCP.
Equivalent of setting the NFSD_PROTOCOL parameter to ALL
in the nfs file.
-c #_conn This sets the maximum number of connections allowed to
the NFS server over connection-oriented transports. By
default, the number of connections is unlimited. Equiva‐
lent of the NFSD_MAX_CONNECTIONS parameter in the nfs
file.
-l Set connection queue length for the NFS TCP over a con‐
nection-oriented transport. The default value is 32
entries. Equivalent of the NFSD_LISTEN_BACKLOG parameter
in the nfs file.
-p protocol Start a NFS daemon over the specified protocol. Equiva‐
lent of the NFSD_PROTOCOL parameter in the nfs file.
-t device Start a NFS daemon for the transport specified by the
given device. Equivalent of the NFSD_DEVICE parameter in
the nfs file.
OPERANDS
The following operands are supported:
nservers This sets the maximum number of concurrent NFS requests
that the server can handle. This concurrency is achieved by
up to nservers threads created as needed in the kernel.
nservers should be based on the load expected on this
server. 16 is the usual number of nservers. If nservers is
not specified, the maximum number of concurrent NFS
requests will default to 1. Equivalent of the NFSD_SERVERS
parameter in the nfs file.
USAGE
If the NFS_PORTMON variable is set in /etc/system, then clients are
required to use privileged ports (ports < IPPORT_RESERVED) to get NFS
services. This variable is equal to zero by default. This variable has
been moved from the "nfs" module to the "nfssrv" module. To set the
variable, edit the /etc/system file and add this entry:
set nfssrv:nfs_portmon = 1
EXIT STATUS
0 Daemon started successfully.
1 Daemon failed to start.
FILES
.nfsXXX Client machine pointer to an open-but-unlinked
file.
/etc/default/nfs Contains startup parameters for nfsd.
/etc/system System configuration information file.
/var/nfs/v4_state Directories used by the server to manage client
/var/nfs/v4_oldstate state information. These directories should not
be removed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │service/file-system/nfs │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOps(1), svcs(1), mountd(1M), share(1M), sharectl(1M), sharemgr(1M),
svcadm(1M), nfs(4), sharetab(4), system(4), attributes(5), smf(5)NOTES
Manually starting and restarting nfsd is not recommended. If it is nec‐
essary to do so, use svcadm to enable or disable the nfs service
(svc:/network/nfs/server). If it is disabled, it will be enabled by
share_nfs(1M), unless its application/auto_enable property is set to
false. See the , and svcadm(1M) for more information.
The nfsd service is managed by the service management facility, smf(5),
under the service identifier:
svc:/network/nfs/server
Administrative actions on this service, such as enabling, disabling, or
requesting restart, can be performed using svcadm(1M). The service's
status can be queried using the svcs(1) command.
If nfsd is killed with SIGTERM, it will not be restarted by the service
management facility. Instead, nfsd can be restarted by other signals,
such as SIGINT.
SunOS 5.11 22 Jul 2008 nfsd(1M)
