Difference between revisions of "NFSv3 (简体中文)"

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#redirect [[NFS (简体中文)]]
[[Category:File systems (简体中文)]]
[[Category:Networking (简体中文)]]
[[de:Network File System]]
{{Translateme (简体中文)}}
'''备注: 查看更多关于 [[NFSv4]] 的信息'''
这两个软件包都在 [core] repository 中, 新的Arch会默认包含他们。
A few examples:
/files *(ro,sync) ; Read-only access to anyone
/files,sync) ; Read-write access to a client on
/files,sync) ;  Read-write access to all clients from to
如果你在启动守护进程后修改了 /etc/exports,可以通过以下命令使其立即生效:
exportfs -r
如果希望NFS共享是公开(public)和可写(writable),可和 anonuid 选项,anongid 选项一起使用 all_squash 选项。
例如,给 nobody 组中的用户 nobody 设定优先级,可以:
; Read-write access to a client on, with rw access for the user 99 with gid 99
这也意味着,如果想对这个目录拥有写权限,nobody.nobody 必须是共享目录的所有者(owner)。
chown -R nobody.nobody /files
exports 文件的详细信息请参考 exports 的man page。
{{注意|原来在 {{ic|/etc/conf.d/nfs}} 的配置文件已经由 {{ic|/etc/conf.d/nfs-common.conf}} 和 {{ic|/etc/conf.d/nfs-server.conf}} 代替。}}
编辑这个文件以传递合适(appropriate)的运行选项给 nfsd, mountd, statd, 和 sm-notify。默认的 Arch NFS 初始化脚本(init scripts)要求 --no-notify 参数的 statd 选项,如下:
详细信息请参考相应的man pages。
/etc/rc.d/portmap start
/etc/rc.d/nfslock start
/etc/rc.d/nfsd start
可以将portmap nfslock nfsd 依次加入到/etc/rc.conf的DAEMONS中以使NFS服务程序一开始就启动.
编辑这个文件以传递合适(appropriate)的运行选项给 statd - 剩下的选项都是仅仅供服务器使用的。''不要''在客户端使用 --no-notify 选项,除非你完全意识到这样做的后果。
请参考 statd man page 获取详细信息。
Start the portmap and nfslock daemons:
/etc/rc.d/portmap start
/etc/rc.d/nfslock start
Please note that they must be started in that order.<br>
To start the daemons at boot time, add them to the DAEMONS array in /etc/rc.conf.
Then just mount as normal:
mount server:/files /files
Unlike CIFS shares or [[rsync]], NFS exports must be called by the full path on the server; example, if /home/fred/music is defined in /etc/exports on server ELROND, you must call:
mount ELROND:/home/fred/music /mnt/point
instead of just using:
mount ELROND:music /mnt/point
or you will get ''mount.nfs: access denied by server while mounting''
{{Note|If you see the following message then you probably did not start the daemons from the [[#Daemons|previous section]]{{Broken section link}} or something went wrong while starting them.
mount: wrong fs type, bad option, bad superblock on,
      missing codepage or helper program, or other error
      (for several filesystems (e.g. nfs, cifs) you might
      need a /sbin/mount.<type> helper program)
      In some cases useful info is found in syslog - try
      dmesg | tail  or so
===使用 cifs 挂载===
Mounting the same share using cifs works a bit differently then using NFS. First, you need to have the share defined in Samba. For that look at the [[Samba]] article.
Lets say you made a share on "ELROND" with the name "music". To mount that share using cifs a command like the following should work
mount -t cifs -v ELROND:music /mnt/point -o guest,iocharset=utf8
You can try:
mount -t cifs -v ELROND:music /mnt/point
Or to login with a username and password:
mount -t cifs -v ELROND:music /mnt/point -o username=USERNAME,password=PASSWORD,iocharset=utf8
More information for this can be found in the [[Samba#Manual mounting|manual mounting]] section of [[samba]].
Now you have effectively made 1 folder accessible for NFS clients (mostly linux) and CIFS clients (mostly windows).
欲使网络文件夹在启动时自动挂载,须确保netfs在'''/etc/rc.conf'''的'''DAEMONS'''行中,且在'''/etc/fstab''' 中有相应设置,例如:
server:/files /files nfs defaults 0 0
server:/files /files nfs rsize=32768,wsize=32768 0 0
'''man nfs''' 以获取更多信息,包括可用的挂载选项等.
=== failed to contact local rpcbind server  ===
rpcbind: server localhost not responding, timed out
RPC: failed to contact local rpcbind server (errno 5) .
rpcbind: server localhost not responding, timed out
RPC: failed to contact local rpcbind server (errno 5).
lockd_up: makesock failed, error=-5
^CRPC: failed to contact local rpcbind server (errno 512).
解决方法,在挂载的时候,加上-o nolock 参数即可。
===Unreliable performance, slow data transfer, and/or high load when using NFS and gigabit===
This is a result of the  default packetsize used by NFS, which causes significant fragmentation on gigabit networks. You can modify this behavior by the rsize and wsize mount parameters. Using rsize=32768,wsize=32768 should suffice. Please note that this problem does not occur on 100Mb networks, due to the lower packet transfer speed.
{{注意|NFSv4 的默认值是32768。最大可以取65536. Increase from default in increments of 1024 until maximum transfer rate is achieved.}}
===Portmap daemon fails to start at boot===
Make sure you place portmap BEFORE netfs in the daemons array in /etc/rc.conf .
== Tips and tricks ==
=== 配置 NFS 固定端口 ===
如果你有一个基于端口的防火墙,你也许想设置一个固定的端口。对于 rpc.statd 和 rpc.mountd 你应该在 {{ic|/etc/conf.d/nfs-common}} 中 {{ic|/etc/conf.d/nfs-server}} 按照如下设置 (端口可以与下面不同):
{{hc|/etc/conf.d/nfs-common|2=STATD_OPTS="-p 4000 -o 4003"}}
{{hc|/etc/conf.d/nfs-server|2=MOUNTD_OPTS="--no-nfs-version 2 -p 4002"}}
{{hc|/etc/modprobe.d/lockd.conf|2=# Static ports for NFS lockd
options lockd nlm_udpport=4001 nlm_tcpport=4001}}
之后重启 nfs 守护进程,然后重新载入 lockd 模块:
{{bc|<nowiki># modprobe -r lockd
# modprobe lockd
# rc.d restart nfs-common nfs-server</nowiki>}}
重启 nfs 守护进程和重新载入 lockd 模块之后,你可以使用以下命令检查使用的端口:
{{hc|$ rpcinfo -p|rpcinfo -p
  program vers proto  port  service
    100000    4  tcp    111  portmapper
    100000    3  tcp    111  portmapper
    100000    2  tcp    111  portmapper
    100000    4  udp    111  portmapper
    100000    3  udp    111  portmapper
    100000    2  udp    111  portmapper
    100024    1  udp  4000  status
    100024    1  tcp  4000  status
    100021    1  udp  4001  nlockmgr
    100021    3  udp  4001  nlockmgr
    100021    4  udp  4001  nlockmgr
    100021    1  tcp  4001  nlockmgr
    100021    3  tcp  4001  nlockmgr
    100021    4  tcp  4001  nlockmgr
    100003    2  tcp  2049  nfs
    100003    3  tcp  2049  nfs
    100003    4  tcp  2049  nfs
    100003    2  udp  2049  nfs
    100003    3  udp  2049  nfs
    100003    4  udp  2049  nfs
    100005    3  udp  4002  mountd
    100005    3  tcp  4002  mountd}}
然后,你需要打开端口 111-2049-4000-4001-4002-4003 的 tcp 和 udp.
* 参见 [[Avahi]], 一个零配置的实现,允许自动发现 NFS 共享。
* HOWTO: [[Diskless network boot NFS root]]
* [http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.prftungd/doc/prftungd/nfs_perf.htm 非常有用]
* 如果你配置 Archlinux NFS 服务器供 Windows 客户端通过 Microsoft's SFU 使用,你可以查看这里来节约时间和避免细节的配置问题[https://bbs.archlinux.org/viewtopic.php?pid=523934#p523934 this forum post] 。
* [http://blogs.msdn.com/sfu/archive/2008/04/14/all-well-almost-about-client-for-nfs-configuration-and-performance.aspx Microsoft Services for Unix NFS Client info]
* [http://blogs.msdn.com/sfu/archive/2007/05/01/unix-interoperability-and-windows-vista.aspx Unix interoperability and Windows Vista] Prerequisites to connect to NFS with Vista

Latest revision as of 01:34, 13 March 2019

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