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--- linux_wiki:nfs_shares [2016/01/04 23:17]
billdozor created
+++ linux_wiki:nfs_shares [2019/05/25 23:50] (current)
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-====== Nfs Shares ======
+====== NFS Shares ======
 **General Information**
@@ Line 6: / Line 6: @@
 **Checklist**
-  * Enterprise Linux 6/7
+  * Distro(s): Enterprise Linux 7
-  * Two systems (server and client)
+  * Other: Two systems (server and client)
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@@ Line 13: / Line 13: @@
 ====== NFS Server Setup ======
-TODO
+  * Install required package<code bash>yum install nfs-utils</code>
+  * Start and enable the NFS Server<code bash>systemctl start nfs-server
+systemctl enable nfs-server</code>
+  * Create your share directory structure<code bash>mkdir -p /data/share1</code>
+  * Create an export line to share the directory<code bash>vim /etc/exports
+/data/share1  192.168.1.0/24(rw)</code>
+    * /data/share1 => the directory to share
+    * 192.168.1.0/24(rw) => share to entire network with read/write.
+      * Other ways to share are to specify single hostnames(short, fqdn, single ip), IP networks (as shown), hostnames/domains with wildcards (*.mydomain.edu). See man exports for more details.
+  * If a firewall is running, allow nfs, rpc-bind, and mountd<code bash>firewall-cmd --permanent --add-service=nfs
+firewall-cmd --permanent --add-service=rpc-bind
+firewall-cmd --permanent --add-service=mountd
+firewall-cmd --reload</code>
+    * nfs (tcp/udp 2049) => needed for NFSv4
+    * rpc-bind (tcp/udp 111) => needed for NFSv3 compatibility and for showmount to work from client
+    * mountd (tcp/udp 20048) => needed for the "showmount -e hostname" command to work from a client
+----
+===== NFS Server: Increasing NFS Threads =====
+To increase NFS server performance, it is usually necessary to increase the number of NFS daemon processes running. (The default is very small at 8.)
+  * CentOS 7
+    * Edit the following config file<code bash>vim /etc/sysconfig/nfs
+# Number of nfs server processes to be started.
+# The default is 8.
+RPCNFSDCOUNT=16
+</code>
+    * Restart the nfs-config service<code bash>systemctl restart nfs-config</code>
+    * Restart the nfs service<code bash>systemctl restart nfs-server</code>
+    * Verify
+      * NFS running sysconfig (takes effect after nfs-config restart)<code bash>cat /run/sysconfig/nfs-utils
+RPCNFSDARGS=" 16"</code>
+      * "th" line in proc (number after 'th' is number of processes)<code bash>grep th /proc/net/rpc/nfsd
+th 16 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000</code>
+      * Running processes<code bash>ps -elf | grep nfsd] | grep -v grep | wc -l
+</code>
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 ====== NFS Client Setup ======
-TODO
+  * Install required package<code bash>yum install nfs-utils</code>
+  * View available mounts on NFS Server<code bash>showmount -e fileserver01
+Export list for fileserver01:
+/data/share1 192.168.1.0/24</code>
+  * Mount temporarily<code bash>mount -t nfs fileserver01:/data/share1 /mnt</code>
+  * Mount persistently<code bash>vim /etc/fstab
+## NFS Shares ##
+fileserver01:/data/share1  /remote  nfs  _netdev  0 0</code>
+    * _netdev => Mount option to skip mounting this location until the network is available.
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