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目錄
yum install -y nfs-utils
過程 16.1. On the *SERVER* side
stop & disable services
service nfs stop service nfslock stop service portmap stop service rpcidmapd stop
/etc/fstab
as root edit /etc/fstab and add nfs4 exports /www /exports none bind 0 0
as root edit /etc/exports
NFSv3
/exports 172.16.1.0/24 (rw,sync)
NFSv4
/exports 172.16.1.0/24(rw,sync,fsid=0,anonuid=99,anongid=99) /exports/neo *(rs,sync)
reload exported filesystems
# exportfs -rv
firewall
iptables -A INPUT -m state –state NEW -m tcp -p tcp –dport 2049 -j ACCEPT
start required services
chkconfig portmap on chkconfig nfs on chkconfig nfslock on chkconfig rpcidmapd on service portmap start service rpcidmapd start service nfs start service nfslock start
nfs status
# nfsstat Server rpc stats: calls badcalls badauth badclnt xdrcall 171 0 0 0 0 Server nfs v3: null getattr setattr lookup access readlink 3 1% 150 88% 0 0% 3 1% 2 1% 0 0% read write create mkdir symlink mknod 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% remove rmdir rename link readdir readdirplus 0 0% 0 0% 0 0% 0 0% 0 0% 9 5% fsstat fsinfo pathconf commit 0 0% 3 1% 0 0% 0 0%
# watch nfsstat -c Every 2.0s: nfsstat -c Mon Sep 20 16:53:55 2010 Client rpc stats: calls retrans authrefrsh 286818929 1160 0 Client nfs v4: null read write commit open open_conf 0 0% 37286763 13% 6 0% 1 0% 38990106 13% 17986485 6% open_noat open_dgrd close setattr fsinfo renew 6 0% 0 0% 38774539 13% 2172019 0% 16 0% 147 0% setclntid confirm lock lockt locku access 321 0% 321 0% 0 0% 0 0% 0 0% 62157123 21% getattr lookup lookup_root remove rename link 80553542 28% 8828991 3% 8 0% 5 0% 5 0% 0 0% symlink create pathconf statfs readlink readdir 0 0% 1 0% 0 0% 5 0% 0 0% 13933 0% server_caps delegreturn 24 0% 54556 0%
security
# vi /etc/hosts.deny portmap:ALL # vi /etc/hosts.allow portmap:172.16.1.0/255.255.254.0
NFS的隊列大小下面將設置為較合理的值256K
# echo 262144 > /proc/sys/net/core/rmem_default # echo 262144 > /proc/sys/net/core/rmem_max # echo 262144 > /proc/sys/net/core/wmmen_default # echo 262144 > /proc/sys/net/core/wmmen_max
過程 16.2. NFSv4
/etc/exports
# cat /etc/exports /www 172.16.1.2/32(ro,sync,fsid=0,anonuid=99,anongid=99) /www/logs *(rw,sync)
注意，要通過NFS4共享一個目錄,必須使用 fsid=0 的參數,使用fsid=0選項的時候只能共享一個目錄，這個目錄將成為NFS伺服器的根目錄。
啟動NFS,v4 不需要portmap
service portmap stop service rpcidmapd stop service nfs restart service nfslock stop
查看 export 設置
# exportfs /www 172.16.1.2/32 /www/logs 172.16.1.0/24
mount NFSv4
mount -t nfs4 172.16.1.15:/logs /mnt